K. Choi - The Super-Kamiokande Collaboration

K. Choi
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K. Choi
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The Super-Kamiokande Collaboration
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High Energy Physics - Phenomenology (8)
 
Physics - Strongly Correlated Electrons (7)
 
Computer Science - Multimedia (7)
 
High Energy Physics - Experiment (7)
 
Physics - Instrumentation and Detectors (6)
 
Mathematics - Differential Geometry (5)
 
Computer Science - Artificial Intelligence (5)
 
Computer Science - Sound (5)
 
High Energy Astrophysical Phenomena (4)
 
Mathematics - Information Theory (4)
 
Computer Science - Information Theory (4)
 
Physics - Materials Science (4)
 
Cosmology and Nongalactic Astrophysics (3)
 
High Energy Physics - Theory (3)
 
Physics - Mesoscopic Systems and Quantum Hall Effect (3)
 
Computer Science - Learning (3)
 
Computer Science - Computer Vision and Pattern Recognition (2)
 
Physics - Optics (2)
 
Solar and Stellar Astrophysics (2)
 
Mathematics - Analysis of PDEs (2)
 
Computer Science - Information Retrieval (1)
 
Computer Science - Computation and Language (1)
 
Mathematics - Numerical Analysis (1)
 
Computer Science - Graphics (1)
 
General Relativity and Quantum Cosmology (1)
 
Nuclear Theory (1)
 
Physics - Geophysics (1)
 
Computer Science - Neural and Evolutionary Computing (1)
 
Mathematics - Symplectic Geometry (1)

Publications Authored By K. Choi

$\alpha$-RuCl$_3$ has attracted enormous attention since it has been proposed as a prime candidate to study fractionalized magnetic excitations akin to Kitaev's honeycomb-lattice spin liquid. We have performed a detailed specific-heat investigation at temperatures down to $0.4$ K in applied magnetic fields up to $9$ T for fields parallel to the $ab$ plane. Read More

We describe the Monte Carlo (MC) simulation package of the Borexino detector and discuss the agreement of its output with data. The Borexino MC 'ab initio' simulates the energy loss of particles in all detector components and generates the resulting scintillation photons and their propagation within the liquid scintillator volume. The simulation accounts for absorption, reemission, and scattering of the optical photons and tracks them until they either are absorbed or reach the photocathode of one of the photomultiplier tubes. Read More

In this paper, we present a transfer learning approach for music classification and regression tasks. We propose to use a pretrained convnet feature, a concatenated feature vector using activations of feature maps of multiple layers in a trained convolutional network. We show that how this convnet feature can serve as a general-purpose music representation. Read More

Gauge symmetries are known to be respected by gravity because gauge charges carry flux lines, but global charges do not carry flux lines and are not conserved by gravitational interaction. For discrete symmetries, they are spontaneously broken in the Universe, forming domain walls. Since the realization of discrete symmetries in the Universe must involve the vacuum expectation values of Higgs fields, a string-like configuration (hair) at the intersection of domain walls in the Higgs vacua can be realized. Read More

We found new two-dimensional (2D) quantum (S=1/2) antiferromagnetic systems: CuRE2Ge2O8 (RE=Y and La). According to our analysis of high-resolution X-ray and neutron diffraction experiments, the Cu-network of CuRE2Ge2O8 (RE=Y and La) exhibits a 2D triangular lattice linked via weak bonds along the perpendicular b-axis. Our bulk characterizations from 0. Read More

2017Mar
Authors: SHiP collaboration, A. Akmete, A. Alexandrov, A. Anokhina, S. Aoki, E. Atkin, N. Azorskiy, J. J. Back, A. Bagulya, A. Baranov, G. J. Barker, A. Bay, V. Bayliss, G. Bencivenni, A. Y. Berdnikov, Y. A. Berdnikov, M. Bertani, C. Betancourt, I. Bezshyiko, O. Bezshyyko, D. Bick, S. Bieschke, A. Blanco, J. Boehm, M. Bogomilov, K. Bondarenko, W. M. Bonivento, A. Boyarsky, R. Brenner, D. Breton, R. Brundler, M. Bruschi, V. Büscher, A. Buonaura, S. Buontempo, S. Cadeddu, A. Calcaterra, M. Campanelli, J. Chauveau, A. Chepurnov, M. Chernyavsky, K. -Y. Choi, A. Chumakov, P. Ciambrone, G. M. Dallavalle, N. D'Ambrosio, G. D'Appollonio, G. De Lellis, A. De Roeck, M. De Serio, L. Dedenko, A. Di Crescenzo, N. Di Marco, C. Dib, H. Dijkstra, V. Dmitrenko, D. Domenici, S. Donskov, A. Dubreuil, J. Ebert, T. Enik, A. Etenko, F. Fabbri, L. Fabbri, O. Fedin, G. Fedorova, G. Felici, M. Ferro-Luzzi, R. A. Fini, P. Fonte, C. Franco, T. Fukuda, G. Galati, G. Gavrilov, S. Gerlach, L. Golinka-Bezshyyko, D. Golubkov, A. Golutvin, D. Gorbunov, S. Gorbunov, V. Gorkavenko, Y. Gornushkin, M. Gorshenkov, V. Grachev, E. Graverini, V. Grichine, A. M. Guler, Yu. Guz, C. Hagner, H. Hakobyan, E. van Herwijnen, A. Hollnagel, B. Hosseini, M. Hushchyn, G. Iaselli, A. Iuliano, R. Jacobsson, M. Jonker, I. Kadenko, C. Kamiscioglu, M. Kamiscioglu, M. Khabibullin, G. Khaustov, A. Khotyantsev, S. H. Kim, V. Kim, Y. G. Kim, N. Kitagawa, J. -W. Ko, K. Kodama, A. Kolesnikov, D. I. Kolev, V. Kolosov, M. Komatsu, N. Konovalova, M. A. Korkmaz, I. Korol, I. Korol'ko, A. Korzenev, S. Kovalenko, I. Krasilnikova, K. Krivova, Y. Kudenko, V. Kurochka, E. Kuznetsova, H. M. Lacker, A. Lai, G. Lanfranchi, O. Lantwin, A. Lauria, H. Lebbolo, K. Y. Lee, J. -M. Lévy, V. Likacheva, L. Lopes, V. Lyubovitskij, J. Maalmi, A. Magnan, V. Maleev, A. Malinin, A. Mefodev, P. Mermod, S. Mikado, Yu. Mikhaylov, D. A. Milstead, O. Mineev, A. Montanari, M. C. Montesi, K. Morishima, S. Movchan, N. Naganawa, M. Nakamura, T. Nakano, A. Novikov, B. Obinyakov, S. Ogawa, N. Okateva, P. H. Owen, A. Paoloni, B. D. Park, L. Paparella, A. Pastore, M. Patel, D. Pereyma, D. Petrenko, K. Petridis, D. Podgrudkov, V. Poliakov, N. Polukhina, M. Prokudin, A. Prota, A. Rademakers, F. Ratnikov, T. Rawlings, M. Razeti, F. Redi, S. Ricciardi, T. Roganova, A. Rogozhnikov, H. Rokujo, G. Rosa, T. Rovelli, O. Ruchayskiy, T. Ruf, V. Samoylenko, A. Saputi, O. Sato, E. S. Savchenko, W. Schmidt-Parzefall, N. Serra, A. Shakin, M. Shaposhnikov, P. Shatalov, T. Shchedrina, L. Shchutska, V. Shevchenko, H. Shibuya, A. Shustov, S. B. Silverstein, S. Simone, M. Skorokhvatov, S. Smirnov, J. Y. Sohn, A. Sokolenko, N. Starkov, B. Storaci, P. Strolin, S. Takahashi, I. Timiryasov, V. Tioukov, N. Tosi, D. Treille, R. Tsenov, S. Ulin, A. Ustyuzhanin, Z. Uteshev, G. Vankova-Kirilova, F. Vannucci, P. Venkova, S. Vilchinski, M. Villa, K. Vlasik, A. Volkov, R. Voronkov, R. Wanke, J. -K. Woo, M. Wurm, S. Xella, D. Yilmaz, A. U. Yilmazer, C. S. Yoon, Yu. Zaytsev

The SHiP experiment is designed to search for very weakly interacting particles beyond the Standard Model which are produced in a 400 GeV/c proton beam dump at the CERN SPS. An essential task for the experiment is to keep the Standard Model background level to less than 0.1 event after $2\times 10^{20}$ protons on target. Read More

Kitaev quantum spin liquid is a topological magnetic quantum state characterized by Majorana fermions of fractionalized spin excitations, which are identical to their own antiparticles. Here, we demonstrate emergence of Majorana fermions thermally fractionalized in the Kitaev honeycomb spin lattice {\alpha}-RuCl3. The specific heat data unveil the characteristic two-stage release of magnetic entropy involving localized and itinerant Majorana fermions. Read More

In this paper, we provide a comprehensive system model of a wireless-powered sensor network (WPSN) based on experimental results on a real-life testbed. In the WPSN, a sensor node is wirelessly powered by the RF energy transfer from a dedicated RF power source. We define the behavior of each component comprising the WPSN and analyze the interaction between these components to set up a realistic WPSN model from the systematic point of view. Read More

In this paper, we investigate a multi-node multi-antenna wireless-powered sensor networks (WPSN) comprised of one power beacon and multiple sensor nodes. We have implemented a real-life multi-node multi-antenna WPSN testbed that operates in real time. We propose a beam-splitting beamforming technique that enables a power beacon to split microwave energy beams towards multiple nodes for simultaneous charging. Read More

Topological quantum spin liquids (QSLs) are states of matter with remarkable predicted properties -- an ability to create and braid quasiparticles in certain topological QSLs equals the ability to perform topologically protected quantum computation. There are various mathematical models with topological QSL phases, but so far none has been physically realized. Here we show that $\alpha$-RuCl$_3$ exhibits a magnetic field-induced QSL ground-state. Read More

Hexagonal RMnO3 is a multiferroic compound with a giant spin-lattice coupling at an antiferromagnetic transition temperature [1]. Despite extensive studies over the past two decades, however, the origin and underlying microscopic mechanism of the strong spin-lattice coupling remain still very much elusive. In this study, we have tried to address this problem by measuring the thermal expansion and dielectric constant of doped single crystals Y1-xLuxMnO3 with x = 0, 0. Read More

We detected the seasonal modulation of the $^7$Be neutrino interaction rate with the Borexino detector at the Laboratori Nazionali del Gran Sasso in Italy. The period, amplitude, and phase of the observed time evolution of the signal are consistent with its solar origin, and the absence of an annual modulation is rejected at 99.99\% C. Read More

By the analysis of the world data base of elastic electron scattering on the proton and the neutron (for the latter, in fact, on $^2H$ and $^3He$) important experimental insights have recently been gained into the flavor compositions of nucleon electromagnetic form factors. We report on testing the Graz Goldstone-boson-exchange relativistic constituent-quark model in comparison to the flavor contents in low-energy nucleons, as revealed from electron-scattering phenomenology. It is found that a satisfactory agreement is achieved between theory and experiment for momentum transfers up to $Q^2\sim$ 4 GeV$^2$, relying on three-quark configurations only. Read More

In this paper, we present a novel method for rapid high-resolution range sensing using green-blue stripe pattern. We use green and blue for designing high-frequency stripe projection pattern. For accurate and reliable range recovery, we identify the stripe patterns by our color-stripe segmentation and unwrapping algorithms. Read More

Many extensions of Standard Model (SM) include a dark sector which can interact with the SM sector via a light mediator. We explore the possibilities to probe such a dark sector by studying the distortion of the CMB spectrum from the blackbody shape due to the elastic scatterings between the dark matter and baryons through a hidden light mediator. We in particular focus on the model where the dark sector gauge boson kinetically mixes with the SM and present the future experimental prospect for a PIXIE-like experiment along with its comparison to the existing bounds from complementary terrestrial experiments. Read More

The Morgan-Morgan-Finney (MMF) model is a widely used semi-physically based soil erosion model that has been tested and validated in various land use types and climatic regions. The latest version of the model, the modified MMF (MMMF) model, improved its conceptual physical representations through several modifications of the original model. However, the MMMF model has three problematic parts to be corrected: 1) the effective rainfall equation, 2) the interflow equation, and 3) the improperly normalized C-factor of the transport capacity equation. Read More

We report on the unusual behavior of the in-plane thermal conductivity ($\kappa$) and torque ($\tau$) response in the Kitaev-Heisenberg material $\alpha$-RuCl$_3$. $\kappa$ shows a striking enhancement with linear growth beyond H = 7 T, where magnetic order disappears, while $\tau$ for both of the in-plane symmetry directions shows an anomaly at the same field. The temperature- and field-dependence of $\kappa$ are far more complex than conventional phonon and magnon contributions, and require us to invoke the presence of unconventional spin excitations whose properties are characteristic of a field-induced spin-liquid phase related to the enigmatic physics of the Kitaev model in an applied magnetic field Read More

We examine if the cosmological relaxation mechanism, which was proposed recently as a new solution to the hierarchy problem, can be compatible with high reheating temperature well above the weak scale. As the barrier potential disappears at high temperature, the relaxion rolls down further after the reheating, which may ruin the successful implementation of the relaxation mechanism. It is noted that if the relaxion is coupled to a dark gauge boson, the new frictional force arising from dark gauge boson production can efficiently slow down the relaxion motion, which allows the relaxion to be stabilized after the electroweak phase transition for a wide range of model parameters, while satisfying the known observational constraints. Read More

2016Nov
Authors: Hyper-Kamiokande proto-collaboration, :, K. Abe, Ke. Abe, H. Aihara, A. Aimi, R. Akutsu, C. Andreopoulos, I. Anghel, L. H. V. Anthony, M. Antonova, Y. AshidaK, M. Barbi, G. J. Barker, G. Barr, P. Beltrame, V. Berardi, M. Bergevin, S. Berkman, T. Berry, S. Bhadra, F. d. M. Blaszczyk, A. Blondel, S. Bolognesi, S. B. Boyd, A. Bravar, C. Bronner, M. Buizza, F. S. Cafagna, A. Cole, R. Calland, S. CaoK, S. L. Cartwright, M. G. Catanesi, C. Checchia, Z. Chen-Wishart, J. H. Choi, K. Choi, J. Coleman, G. Collazuol, G. Cowan, L. Cremonesi, T. Dealtry, G. De Rosa, C. Densham, D. Dewhurst, E. L. Drakopoulou, F. Di Lodovico, O. Drapier, P. Dunne, M. Dziewiecki, S. Emery, A. Esmaili, P. Fern'andez, E. Fern'andez-Martinez, T. FeuselsU, A. Finch, A. Fiorentini, M. Fitton, K. Frankiewicz, M. Friend, Y. Fujii, Y. Fukuda, D. Fukuda, K. Ganezer, M. Gonin, N. Grant, P. Gumplinger, D. R. Hadley, L. Haegel, D. Hamabe, B. Hartfiel, M. Hartz, Y. Hayato, K. Hayrapetyan, J. Hill, S. HirotaK, S. Horiuchi, A. K. Ichikawa, T. Iijima, M. Ikeda, J. Imber, K. Inoue, J. Insler, R. A. Intonti, A. Ioannisian, T. Ishida, H. Ishino, M. Ishitsuka, Y. Itow, K. Iwamoto, A. Izmaylov, B. Jamieson, H. I. Jang, J. S. Jang, S. H. Jeon, M. Jiang, P. Jonsson, K. K. Joo, A. Kaboth, C. Kachulis, T. Kajita, J. Kameda, Y. Karadhzov, T. Katori, K. Kayrapetyan, E. Kearns, M. Khabibullin, A. Khotjantsev, J. H. Kim, J. Y. Kim, S. B. Kim, S. Y. Kim, S. King, Y. Kishimoto, P. Ko, T. Kobayashi, M. Koga, A. Konaka, L. L. Kormos, Y. Koshio, K. L. Kowalik, W. R. Kropp, Y. Kudenko, R. Kurjata, T. Kutter, M. Kuze, L. Labarga, J. Lagoda, P. J. J. Lasorak, M. Laveder, M. Lawe, J. G. Learned, I. T. Lim, T. Lindner, R. P. Litchfield, A. Longhin, P. Loverre, T. Lou, L. Ludovici, W. Ma, L. Magaletti, K. MahnMSU, M. Malek, L. Maret, C. Mariani, K. Martens, Ll. Marti, J. F. Martin, J. Marzec, S. Matsuno, E. Mazzucato, M. McCarthy, N. McCauley, K. S. McFarland, C. McGrew, A. Mefodiev, C. Metelko, M. Mezzetto, J. Migenda, P. Mijakowski, H. Minakata, A. Minamino, S. Mine, O. Mineev, M. Miura, J. Monroe, D. H. Moon, S. Moriyama, T. Mueller, F. Muheim, K. Murase, F. Muto, M. Nakahata, Y. Nakajima, K. Nakamura, T. Nakaya, S. Nakayama, C. Nantais, M. Needham, T. Nicholls, Y. Nishimura, E. Noah, F. Nova, J. Nowak, H. Nunokawa, Y. Obayashi, H. M. O'Keeffe, Y. Okajima, K. Okumura, E. O'Sullivan, T. Ovsiannikova, R. A. Owen, Y. Oyama, J. P'erez, M. Y. Pac, V. Palladino, J. L. Palomino, V. Paolone, W. Parker, S. Parsa, D. Payne, J. D. Perkin, E. Pinzon Guerra, S. Playfer, M. Posiadala-Zezula, J. -M. Poutissou, A. Pritchard, N. W. Prouse, P. Przewlocki, B. Quilain, M. Quinto, E. Radicioni, P. N. Ratoff, M. A. Rayner, F. Retiere, C. Riccio, B. Richards, E. Rondio, H. J. Rose, C. Rott, S. D. Rountree, A. C. Ruggeri, A. Rychter, R. Sacco, M. Sakuda, M. C. Sanchez, E. Scantamburlo, K. Scholberg, M. Scott, Y. Seiya, T. Sekiguchi, H. Sekiya, S. H. Seo, D. Sgalaberna, R. Shah, A. Shaikhiev, I. Shimizu, M. Shiozawa, Y. Shitov, S. Short, C. Simpson, G. Sinnis, M. B. Smy, S. Snow, J. Sobczyk, H. W. Sobel, Y. Sonoda, T. Stewart, J. L. Stone, Y. Suda, Y. Suwa, Y. Suzuki, A. T. Suzuki, R. Svoboda, R. Tacik, A. Takeda, A. Takenaka, A. Taketa, Y. Takeuchi, V. Takhistov, H. A. Tanaka, H. K. M. Tanaka, H. Tanaka, R. Terri, L. F. Thompson, M. Thorpe, S. Tobayama, T. Tomura, C. Touramanis, T. Towstego, T. Tsukamoto, K. M. Tsui, M. Tzanov, Y. Uchida, M. R. Vagins, G. Vasseur, C. Vilela, R. B. Vogelaar, J. Walding, C. W. Walter, D. Wark, M. O. Wascko, A. Weber, R. Wendell, R. J. Wilkes, M. J. Wilking, J. R. Wilson, T. Xin, K. Yamamoto, C. Yanagisawa, T. Yano, S. Yen, N. Yershov, D. N. Yeum, M. Yokoyama, T. Yoshida, I. Yu, M. Yu, J. Zalipska, K. Zaremba, M. Ziembicki, M. Zito, S. Zsoldos

We have conducted sensitivity studies on an alternative configuration of the Hyper-Kamiokande experiment by locating the 2nd Hyper-Kamiokande detector in Korea at $\sim$1100$-\ $1300 km baseline. Having two detectors at different baselines improves sensitivity to leptonic CP violation, neutrino mass ordering as well as nonstandard neutrino interactions. There are several candidate sites in Korea with greater than 1 km high mountains ranged at an 1$-$3 degree off-axis angle. Read More

We consider a one-parameter family of strictly convex hypersurfaces in $\mathbb{R}^{n+1}$ moving with speed $- K^\alpha \nu$, where $\nu$ denotes the outward-pointing unit normal vector and $\alpha \geq \frac{1}{n+2}$. For $\alpha > \frac{1}{n+2}$, we show that the flow converges to a round sphere after rescaling. In the affine invariant case $\alpha=\frac{1}{n+2}$, our arguments give an alternative proof of the fact that the flow converges to an ellipsoid after rescaling. Read More

We derive local $C^{2}$ estimates for complete non-compact translating solitons of the Gauss curvature flow in $\mathbb{R}^3$ which are graphs over a convex domain $\Omega$. This is closely is related to deriving local $C^{2}$ estimates for the degenerate Monge-Amp\'ere equation. As a result, in the special case where the domain $\Omega$ is a square, we establish the existence of a $C^{1,1}_{\text{loc}}$ translating soliton with flat sides. Read More

We examine the low energy phenomenology of the relaxion solution to the weak scale hierarchy problem. Assuming that the Hubble friction is responsible for a dissipation of the relaxion energy, we identify the cosmological relaxion window which corresponds to the parameter region compatible with a given value of the acceptable number of inflationary $e$-foldings. We then discuss a variety of observational constraints on the relaxion window, including those from astrophysical and cosmological considerations. Read More

Anderson proposed structural topology in frustrated magnets hosting novel quantum spin liquids (QSLs). The QSL state is indeed exactly derived by fractionalizing the spin excitation into spinless Majorana fermions in a perfect two dimensional (2D) honeycomb lattice, the so-called Kitaev lattice, and its experimental realisation is eagerly being pursued. Here we, for the first time, report the Kitaev lattice stacking with van der Waals (vdW) bonding in a high quality {\alpha}-RuCl$_3$ crystal using x-ray and neutron diffractions. Read More

We show the uniqueness of strictly convex closed smooth self-similar solutions to the $\alpha$-Gauss curvature flow with $(1/n) < \alpha < 1+(1/n)$. We introduce a Pogorelov type computation, and then we apply the strong maximum principle. Our work combined with earlier works on the Gauss Curvature flow imply that the $\alpha$-Gauss curvature flow with $(1/n) < \alpha < 1+(1/n)$ shrinks a strictly convex closed smooth hypersurface to a round sphere. Read More

We introduce a convolutional recurrent neural network (CRNN) for music tagging. CRNNs take advantage of convolutional neural networks (CNNs) for local feature extraction and recurrent neural networks for temporal summarisation of the extracted features. We compare CRNN with three CNN structures that have been used for music tagging while controlling the number of parameters with respect to their performance and training time per sample. Read More

A simplified model of the tumor angiogenesis can be described by a Keller-Segel equation \cite{FrTe,Le,Pe}. The stability of traveling waves for the one dimensional system has recently been known by \cite{JinLiWa,LiWa}. In this paper we consider the equation on the two dimensional domain $ (x, y) \in \mathbf R \times {\mathbf S^{\lambda}}$ for a small parameter $\lambda>0$ where $ \mathbf S^{\lambda}$ is the circle of perimeter $\lambda$. Read More

2016Aug
Authors: K. Abe, K. Haga, Y. Hayato, M. Ikeda, K. Iyogi, J. Kameda, Y. Kishimoto, M. Miura, S. Moriyama, M. Nakahata, T. Nakajima, Y. Nakano, S. Nakayama, A. Orii, H. Sekiya, M. Shiozawa, A. Takeda, H. Tanaka, S. Tasaka, T. Tomura, R. Akutsu, T. Kajita, K. Kaneyuki, Y. Nishimura, E. Richard, K. Okumura, L. Labarga, P. Fernandez, F. d. M. Blaszczyk, J. Gustafson, C. Kachulis, E. Kearns, J. L. Raaf, J. L. Stone, L. R. Sulak, S. Berkman, C. M. Nantais, S. Tobayama, M. Goldhaber, W. R. Kropp, S. Mine, P. Weatherly, M. B. Smy, H. W. Sobel, V. Takhistov, K. S. Ganezer, B. L. Hartfiel, J. Hil, N. Hong, J. Y. Kim, I. T. Lim, R. G. Park, A. Himmel, Z. Li, E. O'Sullivan, K. Scholberg, C. W. Walter, T. Ishizuka, T. Nakamura, J. S. Jang, K. Choi, J. G. Learned, S. Matsuno, S. N. Smith, M. Friend, T. Hasegawa, T. Ishida, T. Ishii, T. Kobayashi, T. Nakadaira, K. Nakamura, Y. Oyama, K. Sakashita, T. Sekiguchi, T. Tsukamoto, A. T. Suzuki, Y. Takeuchi, T. Yano, S. V. Cao, T. Hiraki, S. Hirota, K. Huang, M. Jiang, A. Minamino, T. Nakaya, N. D. Patel, R. A. Wendell, K. Suzuki, Y. Fukuda, Y. Itow, T. Suzuki, P. Mijakowski, K. Frankiewicz, J. Hignight, J. Imber, C. K. Jung, X. Li, J. L. Palomino, G. Santucci, M. J. Wilking, C. Yanagisawa, D. Fukuda, H. Ishino, T. Kayano, A. Kibayashi, Y. Koshio, T. Mori, M. Sakuda, C. Xu, Y. Kuno, R. Tacik, S. B. Kim, H. Okazawa, Y. Choi, K. Nishijima, M. Koshiba, Y. Totsuka, Y. Suda, M. Yokoyama, C. Bronner, R. G. Calland, M. Hartz, K. Martens, Ll. Marti, Y. Suzuki, M. R. Vagins, J. F. Martin, H. A. Tanaka, A. Konaka, S. Chen, L. Wan, Y. Zhang, R. J. Wilkes

We report the results from a search in Super-Kamiokande for neutrino signals coincident with the first detected gravitational wave events, GW150914 and GW151226, using a neutrino energy range from 3.5 MeV to 100 PeV. We searched for coincident neutrino events within a time window of $\pm$500 seconds around the gravitational wave detection time. Read More

Computing embedded contact homology (ECH) and related invariants of certain toric 3-manifolds (in the sense of Lerman) has led to interesting new results in the study of symplectic embeddings. Here, we give a combinatorial formulation of ECH chain complexes for general toric contact 3-manifolds. As a corollary, we prove Conjecture A. Read More

We have investigated the tunneling transport of mono- and few-layers of MnPS3 by using conductive atomic force microscopy. Due to the band alignment of indium tin oxide/MnPS3/Pt-Ir tip junction, the key features of both Schottky junction and Fowler-Nordheim tunneling (FNT) were observed for all the samples with varying thickness. Using the FNT model and assuming the effective electron mass (0. Read More

Large-scale cloud radio access network (LS-CRAN) is a highly promising next-generation cellular network architecture whereby lots of base stations (BSs) equipped with a massive antenna array are connected to a cloud-computing based central processor unit via digital front/backhaul links. This paper studies an asymptotic behavior of downlink (DL) performance of a LS-CRAN with three practical constraints: 1) limited transmit power, 2) limited front/backhaul capacity, and 3) limited pilot resource. As an asymptotic performance measure, the scaling exponent of the signal-to-interference-plus-noise-ratio (SINR) is derived for interference-free (IF), maximum-ratio transmission (MRT), and zero-forcing (ZF) operations. Read More

In this paper, an uplink scheduling policy problem to minimize the network latency, defined as the air-time to serve all of users with a quality-of-service (QoS), under an energy constraint is considered in a training-based large-scale antenna systems (LSAS) employing a simple linear receiver. An optimal algorithm providing the exact latency-optimal uplink scheduling policy is proposed with a polynomial-time complexity. Via numerical simulations, it is shown that the proposed scheduling policy can provide several times lower network latency over the conventional ones in realistic environments. Read More

A search for neutrino and antineutrino events correlated with 2,350 gamma-ray bursts (GRBs) is performed with Borexino data collected between December 2007 and November 2015. No statistically significant excess over background is observed. We look for electron antineutrinos ($\bar{\nu}_e$) that inverse beta decay on protons with energies from 1. Read More

Deep convolutional neural networks (CNNs) have been actively adopted in the field of music information retrieval, e.g. genre classification, mood detection, and chord recognition. Read More

The fractionalization of elementary excitations in quantum spin systems is a central theme in current condensed matter physics. The Kitaev honeycomb spin model provides a prominent example of exotic fractionalized quasiparticles, composed of itinerant Majorana fermions and gapped gauge fluxes. However, identification of the Majorana fermions in a three-dimensional honeycomb lattice remains elusive. Read More

2016Jun
Authors: Super-Kamiokande Collaboration1, :2, K. Abe3, Y. Haga4, Y. Hayato5, M. Ikeda6, K. Iyogi7, J. Kameda8, Y. Kishimoto9, Ll. Marti10, M. Miura11, S. Moriyama12, M. Nakahata13, T. Nakajima14, S. Nakayama15, A. Orii16, H. Sekiya17, M. Shiozawa18, Y. Sonoda19, A. Takeda20, H. Tanaka21, Y. Takenaga22, S. Tasaka23, T. Tomura24, K. Ueno25, T. Yokozawa26, R. Akutsu27, T. Irvine28, H. Kaji29, T. Kajita30, I. Kametani31, K. Kaneyuki32, K. P. Lee33, Y. Nishimura34, T. McLachlan35, K. Okumura36, E. Richard37, L. Labarga38, P. Fernandez39, F. d. M. Blaszczyk40, J. Gustafson41, C. Kachulis42, E. Kearns43, 32 J. L. Raaf44, J. L. Stone45, 32 L. R. Sulak46, S. Berkman47, S. Tobayama48, M. Goldhaber49, K. Bays50, G. Carminati51, N. J. Griskevich52, W. R. Kropp53, S. Mine54, A. Renshaw55, M. B. Smy56, H. W. Sobel57, V. Takhistov58, P. Weatherly59, K. S. Ganezer60, B. L. Hartfiel61, J. Hill62, W. E. Keig63, N. Hong64, J. Y. Kim65, I. T. Lim66, R. G. Park67, T. Akiri68, J. B. Albert69, A. Himmel70, Z. Li71, E. O'Sullivan72, K. Scholberg73, C. W. Walter74, T. Wongjirad75, T. Ishizuka76, T. Nakamura77, J. S. Jang78, K. Choi79, J. G. Learned80, S. Matsuno81, S. N. Smith82, M. Friend83, T. Hasegawa84, T. Ishida85, T. Ishii86, T. Kobayashi87, T. Nakadaira88, K. Nakamura89, K. Nishikawa90, Y. Oyama91, K. Sakashita92, T. Sekiguchi93, T. Tsukamoto94, Y. Nakano95, A. T. Suzuki96, Y. Takeuchi97, T. Yano98, S. V. Cao99, T. Hayashino100, T. Hiraki101, S. Hirota102, K. Huang103, K. Ieki104, M. Jiang105, T. Kikawa106, A. Minamino107, A. Murakami108, T. Nakaya109, N. D. Patel110, K. Suzuki111, S. Takahashi112, R. A. Wendell113, Y. Fukuda114, Y. Itow115, G. Mitsuka116, F. Muto117, T. Suzuki118, P. Mijakowski119, K. Frankiewicz120, J. Hignight121, J. Imber122, C. K. Jung123, X. Li124, J. L. Palomino125, G. Santucci126, I. Taylor127, C. Vilela128, M. J. Wilking129, C. Yanagisawa130, D. Fukuda131, H. Ishino132, T. Kayano133, A. Kibayashi134, Y. Koshio135, T. Mori136, M. Sakuda137, J. Takeuchi138, R. Yamaguchi139, Y. Kuno140, R. Tacik141, S. B. Kim142, H. Okazawa143, Y. Choi144, K. Ito145, K. Nishijima146, M. Koshiba147, Y. Totsuka148, Y. Suda149, M. Yokoyama150, C. Bronner151, R. G. Calland152, M. Hartz153, K. Martens154, Y. Obayashi155, Y. Suzuki156, M. R. Vagins157, C. M. Nantais158, J. F. Martin159, P. de Perio160, H. A. Tanaka161, A. Konaka162, S. Chen163, H. Sui164, L. Wan165, Z. Yang166, H. Zhang167, Y. Zhang168, K. Connolly169, M. Dziomba170, R. J. Wilkes171
Affiliations: 1Kamioka Observatory, Institute for Cosmic Ray Research, University of Tokyo, 2Kamioka Observatory, Institute for Cosmic Ray Research, University of Tokyo, 3Kamioka Observatory, Institute for Cosmic Ray Research, University of Tokyo, 4Kamioka Observatory, Institute for Cosmic Ray Research, University of Tokyo, 5Kamioka Observatory, Institute for Cosmic Ray Research, University of Tokyo, 6Kamioka Observatory, Institute for Cosmic Ray Research, University of Tokyo, 7Kamioka Observatory, Institute for Cosmic Ray Research, University of Tokyo, 8Kamioka Observatory, Institute for Cosmic Ray Research, University of Tokyo, 9Kamioka Observatory, Institute for Cosmic Ray Research, University of Tokyo, 10Kamioka Observatory, Institute for Cosmic Ray Research, University of Tokyo, 11Kamioka Observatory, Institute for Cosmic Ray Research, University of Tokyo, 12Kamioka Observatory, Institute for Cosmic Ray Research, University of Tokyo, 13Kamioka Observatory, Institute for Cosmic Ray Research, University of Tokyo, 14Kamioka Observatory, Institute for Cosmic Ray Research, University of Tokyo, 15Kamioka Observatory, Institute for Cosmic Ray Research, University of Tokyo, 16Kamioka Observatory, Institute for Cosmic Ray Research, University of Tokyo, 17Kamioka Observatory, Institute for Cosmic Ray Research, University of Tokyo, 18Kamioka Observatory, Institute for Cosmic Ray Research, University of Tokyo, 19Kamioka Observatory, Institute for Cosmic Ray Research, University of Tokyo, 20Kamioka Observatory, Institute for Cosmic Ray Research, University of Tokyo, 21Kamioka Observatory, Institute for Cosmic Ray Research, University of Tokyo, 22Kamioka Observatory, Institute for Cosmic Ray Research, University of Tokyo, 23Kamioka Observatory, Institute for Cosmic Ray Research, University of Tokyo, 24Kamioka Observatory, Institute for Cosmic Ray Research, University of Tokyo, 25Kamioka Observatory, Institute for Cosmic Ray Research, University of Tokyo, 26Kamioka Observatory, Institute for Cosmic Ray Research, University of Tokyo, 27Research Center for Cosmic Neutrinos, Institute for Cosmic Ray Research, University of Tokyo, 28Research Center for Cosmic Neutrinos, Institute for Cosmic Ray Research, University of Tokyo, 29Research Center for Cosmic Neutrinos, Institute for Cosmic Ray Research, University of Tokyo, 30Research Center for Cosmic Neutrinos, Institute for Cosmic Ray Research, University of Tokyo, 31Research Center for Cosmic Neutrinos, Institute for Cosmic Ray Research, University of Tokyo, 32Research Center for Cosmic Neutrinos, Institute for Cosmic Ray Research, University of Tokyo, 33Research Center for Cosmic Neutrinos, Institute for Cosmic Ray Research, University of Tokyo, 34Research Center for Cosmic Neutrinos, Institute for Cosmic Ray Research, University of Tokyo, 35Research Center for Cosmic Neutrinos, Institute for Cosmic Ray Research, University of Tokyo, 36Research Center for Cosmic Neutrinos, Institute for Cosmic Ray Research, University of Tokyo, 37Research Center for Cosmic Neutrinos, Institute for Cosmic Ray Research, University of Tokyo, 38Department of Theoretical Physics, University Autonoma Madrid, 39Department of Theoretical Physics, University Autonoma Madrid, 40Department of Physics, Boston University, 41Department of Physics, Boston University, 42Department of Physics, Boston University, 43Department of Physics, Boston University, 44Department of Physics, Boston University, 45Department of Physics, Boston University, 46Department of Physics, Boston University, 47Department of Physics and Astronomy, University of British Columbia, 48Department of Physics and Astronomy, University of British Columbia, 49Physics Department, Brookhaven National Laboratory, 50Department of Physics and Astronomy, University of California, Irvine, 51Department of Physics and Astronomy, University of California, Irvine, 52Department of Physics and Astronomy, University of California, Irvine, 53Department of Physics and Astronomy, University of California, Irvine, 54Department of Physics and Astronomy, University of California, Irvine, 55Department of Physics and Astronomy, University of California, Irvine, 56Department of Physics and Astronomy, University of California, Irvine, 57Department of Physics and Astronomy, University of California, Irvine, 58Department of Physics and Astronomy, University of California, Irvine, 59Department of Physics and Astronomy, University of California, Irvine, 60Department of Physics, California State University, 61Department of Physics, California State University, 62Department of Physics, California State University, 63Department of Physics, California State University, 64Department of Physics, Chonnam National University, 65Department of Physics, Chonnam National University, 66Department of Physics, Chonnam National University, 67Department of Physics, Chonnam National University, 68Department of Physics, Duke University, 69Department of Physics, Duke University, 70Department of Physics, Duke University, 71Department of Physics, Duke University, 72Department of Physics, Duke University, 73Department of Physics, Duke University, 74Department of Physics, Duke University, 75Department of Physics, Duke University, 76Junior College, Fukuoka Institute of Technology, 77Department of Physics, Gifu University, 78GIST College, Gwangju Institute of Science and Technology, 79Department of Physics and Astronomy, University of Hawaii, 80Department of Physics and Astronomy, University of Hawaii, 81Department of Physics and Astronomy, University of Hawaii, 82Department of Physics and Astronomy, University of Hawaii, 83High Energy Accelerator Research Organization, 84High Energy Accelerator Research Organization, 85High Energy Accelerator Research Organization, 86High Energy Accelerator Research Organization, 87High Energy Accelerator Research Organization, 88High Energy Accelerator Research Organization, 89High Energy Accelerator Research Organization, 90High Energy Accelerator Research Organization, 91High Energy Accelerator Research Organization, 92High Energy Accelerator Research Organization, 93High Energy Accelerator Research Organization, 94High Energy Accelerator Research Organization, 95Department of Physics, Kobe University, 96Department of Physics, Kobe University, 97Department of Physics, Kobe University, 98Department of Physics, Kobe University, 99Department of Physics, Kyoto University, 100Department of Physics, Kyoto University, 101Department of Physics, Kyoto University, 102Department of Physics, Kyoto University, 103Department of Physics, Kyoto University, 104Department of Physics, Kyoto University, 105Department of Physics, Kyoto University, 106Department of Physics, Kyoto University, 107Department of Physics, Kyoto University, 108Department of Physics, Kyoto University, 109Department of Physics, Kyoto University, 110Department of Physics, Kyoto University, 111Department of Physics, Kyoto University, 112Department of Physics, Kyoto University, 113Department of Physics, Kyoto University, 114Department of Physics, Miyagi University of Education, 115Institute for Space-Earth Enviromental Research, Nagoya University, 116Institute for Space-Earth Enviromental Research, Nagoya University, 117Institute for Space-Earth Enviromental Research, Nagoya University, 118Department of Physics, Kobe University, 119National Centre For Nuclear Research, 120National Centre For Nuclear Research, 121Department of Physics and Astronomy, State University of New York at Stony Brook, 122Department of Physics and Astronomy, State University of New York at Stony Brook, 123Department of Physics and Astronomy, State University of New York at Stony Brook, 124Department of Physics and Astronomy, State University of New York at Stony Brook, 125Department of Physics and Astronomy, State University of New York at Stony Brook, 126Department of Physics and Astronomy, State University of New York at Stony Brook, 127Department of Physics and Astronomy, State University of New York at Stony Brook, 128Department of Physics and Astronomy, State University of New York at Stony Brook, 129Department of Physics and Astronomy, State University of New York at Stony Brook, 130Department of Physics and Astronomy, State University of New York at Stony Brook, 131Department of Physics, Okayama University, Okayama, Okayama 700-8530, Japan, 132Department of Physics, Okayama University, Okayama, Okayama 700-8530, Japan, 133Department of Physics, Okayama University, Okayama, Okayama 700-8530, Japan, 134Department of Physics, Okayama University, Okayama, Okayama 700-8530, Japan, 135Department of Physics, Okayama University, Okayama, Okayama 700-8530, Japan, 136Department of Physics, Okayama University, Okayama, Okayama 700-8530, Japan, 137Department of Physics, Okayama University, Okayama, Okayama 700-8530, Japan, 138Department of Physics, Okayama University, Okayama, Okayama 700-8530, Japan, 139Department of Physics, Okayama University, Okayama, Okayama 700-8530, Japan, 140Department of Physics, Osaka University, 141Department of Physics, University of Regina, 142Department of Physics, Seoul National University, 143Department of Informatics in Social Welfare, Shizuoka University of Welfare, 144Department of Physics, Sungkyunkwan University, 145Department of Physics, Tokai University, 146Department of Physics, Tokai University, 147The University of Tokyo, 148The University of Tokyo, 149Department of Physics, University of Tokyo, 150Department of Physics, University of Tokyo, 151Kavli Institute for the Physics and Mathematics of the Universe, 152Kavli Institute for the Physics and Mathematics of the Universe, 153Kavli Institute for the Physics and Mathematics of the Universe, 154Kavli Institute for the Physics and Mathematics of the Universe, 155Kavli Institute for the Physics and Mathematics of the Universe, 156Kavli Institute for the Physics and Mathematics of the Universe, 157Kavli Institute for the Physics and Mathematics of the Universe, 158Department of Physics, University of Toronto, 159Department of Physics, University of Toronto, 160Department of Physics, University of Toronto, 161Department of Physics, University of Toronto, 162TRIUMF, 4004 Wesbrook Mall, 163Department of Engineering Physics, Tsinghua University, 164Department of Engineering Physics, Tsinghua University, 165Department of Engineering Physics, Tsinghua University, 166Department of Engineering Physics, Tsinghua University, 167Department of Engineering Physics, Tsinghua University, 168Department of Engineering Physics, Tsinghua University, 169Department of Physics, University of Washington, 170Department of Physics, University of Washington, 171Department of Physics, University of Washington

Upgraded electronics, improved water system dynamics, better calibration and analysis techniques allowed Super-Kamiokande-IV to clearly observe very low-energy 8B solar neutrino interactions, with recoil electron kinetic energies as low as 3.49 MeV. Super-Kamiokande-IV data-taking began in September of 2008; this paper includes data until February 2014, a total livetime of 1664 days. Read More

Robust topological edge modes may evolve into complex-frequency modes when a physical system becomes non-Hermitian. We show that, while having negligible forward optical extinction cross section, a conjugate pair of such complex topological edge modes in a non-Hermitian $\mathcal{PT}$-symmetric system can give rise to an anomalous sideway scattering when they are simultaneously excited by a plane wave. We propose a realization of such scattering state in a linear array of subwavelength resonators coated with gain media. Read More

We introduce a novel playlist generation algorithm that focuses on the quality of transitions using a recurrent neural network (RNN). The proposed model assumes that optimal transitions between tracks can be modelled and predicted by internal transitions within music tracks. We introduce modelling sequences of high-level music descriptors using RNNs and discuss an experiment involving different similarity functions, where the sequences are provided by a musical structural analysis algorithm. Read More

We present a content-based automatic music tagging algorithm using fully convolutional neural networks (FCNs). We evaluate different architectures consisting of 2D convolutional layers and subsampling layers only. In the experiments, we measure the AUC-ROC scores of the architectures with different complexities and input types using the MagnaTagATune dataset, where a 4-layer architecture shows state-of-the-art performance with mel-spectrogram input. Read More

We examine the implication of the recently observed 750 GeV diphoton excess for the electric dipole moments of the neutron and electron. If the excess is due to a spin zero resonance which couples to photons and gluons through the loops of massive vector-like fermions, the resulting neutron electric dipole moment can be comparable to the present experimental bound if the CP-violating angle {\alpha} in the underlying new physics is of O(10^{-1}). An electron EDM comparable to the present bound can be achieved through a mixing between the 750 GeV resonance and the Standard Model Higgs boson, if the mixing angle itself for an approximately pseudoscalar resonance, or the mixing angle times the CP-violating angle {\alpha} for an approximately scalar resonance, is of O(10^{-3}). Read More

In this paper, we introduce new methods and discuss results of text-based LSTM (Long Short-Term Memory) networks for automatic music composition. The proposed network is designed to learn relationships within text documents that represent chord progressions and drum tracks in two case studies. In the experiments, word-RNNs (Recurrent Neural Networks) show good results for both cases, while character-based RNNs (char-RNNs) only succeed to learn chord progressions. Read More

We study the evolution of convex complete non-compact graphs by positive powers of Gauss curvature. We show that if the initial complete graph has a local uniform convexity, then the graph evolves by any positive power of Gauss curvature for all time. In particular, the initial graph is not necessarily differentiable. Read More

We consider the $Q_k$ flow on complete non-compact graphs. We prove that a complete graph evolves by the $Q_k$ curvature up to some time $T$ depending on the radius of a sphere enclosed by the initial graph. Read More

We show theoretically that, in the limit of weak dispersion, one-dimensional (1D) binary centrosymmetric photonic crystals can support topological edge modes in all photonic band gaps. By analyzing their bulk band topology, these "harmonic" topological edge modes can be designed in a way that they exist at all photonic band gaps opened at the center of the Brillouin Zone, or at all gaps opened at the zone boundaries, or both. The results may suggest a new approach to achieve robust multi-frequency coupled modes for applications in nonlinear photonics, such as frequency up-conversion. Read More

2016Jan
Authors: K. Abe1, Y. Haga2, Y. Hayato3, M. Ikeda4, K. Iyogi5, J. Kameda6, Y. Kishimoto7, M. Miura8, S. Moriyama9, M. Nakahata10, Y. Nakano11, S. Nakayama12, H. Sekiya13, M. Shiozawa14, Y. Suzuki15, A. Takeda16, H. Tanaka17, T. Tomura18, K. Ueno19, R. A. Wendell20, T. Yokozawa21, T. Irvine22, T. Kajita23, I. Kametani24, K. Kaneyuki25, K. P. Lee26, T. McLachlan27, Y. Nishimura28, E. Richard29, K. Okumura30, L. Labarga31, P. Fernandez32, S. Berkman33, H. A. Tanaka34, S. Tobayama35, J. Gustafson36, E. Kearns37, J. L. Raaf38, J. L. Stone39, L. R. Sulak40, M. Goldhaber41, G. Carminati42, W. R. Kropp43, S. Mine44, P. Weatherly45, A. Renshaw46, M. B. Smy47, H. W. Sobel48, V. Takhistov49, K. S. Ganezer50, B. L. Hartfiel51, J. Hill52, W. E. Keig53, N. Hong54, J. Y. Kim55, I. T. Lim56, T. Akiri57, A. Himmel58, K. Scholberg59, C. W. Walter60, T. Wongjirad61, T. Ishizuka62, S. Tasaka63, J. S. Jang64, J. G. Learned65, S. Matsuno66, S. N. Smith67, T. Hasegawa68, T. Ishida69, T. Ishii70, T. Kobayashi71, T. Nakadaira72, K. Nakamura73, Y. Oyama74, K. Sakashita75, T. Sekiguchi76, T. Tsukamoto77, A. T. Suzuki78, Y. Takeuchi79, C. Bronner80, S. Hirota81, K. Huang82, K. Ieki83, T. Kikawa84, A. Minamino85, A. Murakami86, T. Nakaya87, K. Suzuki88, S. Takahashi89, K. Tateishi90, Y. Fukuda91, K. Choi92, Y. Itow93, G. Mitsuka94, P. Mijakowski95, J. Hignight96, J. Imber97, C. K. Jung98, C. Yanagisawa99, M. J. Wilking100, H. Ishino101, A. Kibayashi102, Y. Koshio103, T. Mori104, M. Sakuda105, R. Yamaguchi106, T. Yano107, Y. Kuno108, R. Tacik109, S. B. Kim110, H. Okazawa111, Y. Choi112, K. Nishijima113, M. Koshiba114, Y. Suda115, Y. Totsuka116, M. Yokoyama117, K. Martens118, Ll. Marti119, M. R. Vagins120, J. F. Martin121, P. de Perio122, A. Konaka123, S. Chen124, Y. Zhang125, K. Connolly126, R. J. Wilkes127
Affiliations: 1Super-Kamiokande Collaboration, 2Super-Kamiokande Collaboration, 3Super-Kamiokande Collaboration, 4Super-Kamiokande Collaboration, 5Super-Kamiokande Collaboration, 6Super-Kamiokande Collaboration, 7Super-Kamiokande Collaboration, 8Super-Kamiokande Collaboration, 9Super-Kamiokande Collaboration, 10Super-Kamiokande Collaboration, 11Super-Kamiokande Collaboration, 12Super-Kamiokande Collaboration, 13Super-Kamiokande Collaboration, 14Super-Kamiokande Collaboration, 15Super-Kamiokande Collaboration, 16Super-Kamiokande Collaboration, 17Super-Kamiokande Collaboration, 18Super-Kamiokande Collaboration, 19Super-Kamiokande Collaboration, 20Super-Kamiokande Collaboration, 21Super-Kamiokande Collaboration, 22Super-Kamiokande Collaboration, 23Super-Kamiokande Collaboration, 24Super-Kamiokande Collaboration, 25Super-Kamiokande Collaboration, 26Super-Kamiokande Collaboration, 27Super-Kamiokande Collaboration, 28Super-Kamiokande Collaboration, 29Super-Kamiokande Collaboration, 30Super-Kamiokande Collaboration, 31Super-Kamiokande Collaboration, 32Super-Kamiokande Collaboration, 33Super-Kamiokande Collaboration, 34Super-Kamiokande Collaboration, 35Super-Kamiokande Collaboration, 36Super-Kamiokande Collaboration, 37Super-Kamiokande Collaboration, 38Super-Kamiokande Collaboration, 39Super-Kamiokande Collaboration, 40Super-Kamiokande Collaboration, 41Super-Kamiokande Collaboration, 42Super-Kamiokande Collaboration, 43Super-Kamiokande Collaboration, 44Super-Kamiokande Collaboration, 45Super-Kamiokande Collaboration, 46Super-Kamiokande Collaboration, 47Super-Kamiokande Collaboration, 48Super-Kamiokande Collaboration, 49Super-Kamiokande Collaboration, 50Super-Kamiokande Collaboration, 51Super-Kamiokande Collaboration, 52Super-Kamiokande Collaboration, 53Super-Kamiokande Collaboration, 54Super-Kamiokande Collaboration, 55Super-Kamiokande Collaboration, 56Super-Kamiokande Collaboration, 57Super-Kamiokande Collaboration, 58Super-Kamiokande Collaboration, 59Super-Kamiokande Collaboration, 60Super-Kamiokande Collaboration, 61Super-Kamiokande Collaboration, 62Super-Kamiokande Collaboration, 63Super-Kamiokande Collaboration, 64Super-Kamiokande Collaboration, 65Super-Kamiokande Collaboration, 66Super-Kamiokande Collaboration, 67Super-Kamiokande Collaboration, 68Super-Kamiokande Collaboration, 69Super-Kamiokande Collaboration, 70Super-Kamiokande Collaboration, 71Super-Kamiokande Collaboration, 72Super-Kamiokande Collaboration, 73Super-Kamiokande Collaboration, 74Super-Kamiokande Collaboration, 75Super-Kamiokande Collaboration, 76Super-Kamiokande Collaboration, 77Super-Kamiokande Collaboration, 78Super-Kamiokande Collaboration, 79Super-Kamiokande Collaboration, 80Super-Kamiokande Collaboration, 81Super-Kamiokande Collaboration, 82Super-Kamiokande Collaboration, 83Super-Kamiokande Collaboration, 84Super-Kamiokande Collaboration, 85Super-Kamiokande Collaboration, 86Super-Kamiokande Collaboration, 87Super-Kamiokande Collaboration, 88Super-Kamiokande Collaboration, 89Super-Kamiokande Collaboration, 90Super-Kamiokande Collaboration, 91Super-Kamiokande Collaboration, 92Super-Kamiokande Collaboration, 93Super-Kamiokande Collaboration, 94Super-Kamiokande Collaboration, 95Super-Kamiokande Collaboration, 96Super-Kamiokande Collaboration, 97Super-Kamiokande Collaboration, 98Super-Kamiokande Collaboration, 99Super-Kamiokande Collaboration, 100Super-Kamiokande Collaboration, 101Super-Kamiokande Collaboration, 102Super-Kamiokande Collaboration, 103Super-Kamiokande Collaboration, 104Super-Kamiokande Collaboration, 105Super-Kamiokande Collaboration, 106Super-Kamiokande Collaboration, 107Super-Kamiokande Collaboration, 108Super-Kamiokande Collaboration, 109Super-Kamiokande Collaboration, 110Super-Kamiokande Collaboration, 111Super-Kamiokande Collaboration, 112Super-Kamiokande Collaboration, 113Super-Kamiokande Collaboration, 114Super-Kamiokande Collaboration, 115Super-Kamiokande Collaboration, 116Super-Kamiokande Collaboration, 117Super-Kamiokande Collaboration, 118Super-Kamiokande Collaboration, 119Super-Kamiokande Collaboration, 120Super-Kamiokande Collaboration, 121Super-Kamiokande Collaboration, 122Super-Kamiokande Collaboration, 123Super-Kamiokande Collaboration, 124Super-Kamiokande Collaboration, 125Super-Kamiokande Collaboration, 126Super-Kamiokande Collaboration, 127Super-Kamiokande Collaboration

We present a real-time supernova neutrino burst monitor at Super-Kamiokande (SK). Detecting supernova explosions by neutrinos in real time is crucial for giving a clear picture of the explosion mechanism. Since the neutrinos are expected to come earlier than light, a fast broadcasting of the detection may give astronomers a chance to make electromagnetic radiation observations of the explosions right at the onset. Read More

The weak gravity conjecture applied for the aligned natural inflation indicates that generically there can be a modulation of the inflaton potential, with a period determined by sub-Planckian axion scale. We study the oscillations in the primordial power spectrum induced by such modulation, and discuss the resulting observational constraints on the model. Read More

As music streaming services dominate the music industry, the playlist is becoming an increasingly crucial element of music consumption. Con- sequently, the music recommendation problem is often casted as a playlist generation prob- lem. Better understanding of the playlist is there- fore necessary for developing better playlist gen- eration algorithms. Read More

We discuss a scheme to implement the relaxion solution to the hierarchy problem with multiple axions, and present a UV-completed model realizing the scheme. All of the $N$ axions in our model are periodic with a similar decay constant $f$ well below the Planck scale. In the limit $N\gg 1$, the relaxion $\phi$ corresponds to an exponentially long multi-helical flat direction which is shaped by a series of mass mixing between nearby axions in the compact field space of $N$ axions. Read More

The paper proposes a scheme by combining the Runge-Kutta discontinuous Galerkin method with a {\delta}-mapping algorithm for solving hyperbolic conservation laws with discontinuous fluxes. This hybrid scheme is particularly applied to nonlinear elasticity in heterogeneous media and multi-class traffic flow with inhomogeneous road conditions. Numerical examples indicate the scheme's efficiency in resolving complex waves of the two systems. Read More

2015Oct
Authors: E. Richard1, K. Okumura2, K. Abe3, Y. Haga4, Y. Hayato5, M. Ikeda6, K. Iyogi7, J. Kameda8, Y. Kishimoto9, M. Miura10, S. Moriyama11, M. Nakahata12, T. Nakajima13, Y. Nakano14, S. Nakayama15, A. Orii16, H. Sekiya17, M. Shiozawa18, A. Takeda19, H. Tanaka20, T. Tomura21, R. A. Wendell22, R. Akutsu23, T. Irvine24, T. Kajita25, K. Kaneyuki26, Y. Nishimura27, L. Labarga28, P. Fernandez29, J. Gustafson30, C. Kachulis31, E. Kearns32, J. L. Raaf33, J. L. Stone34, L. R. Sulak35, S. Berkman36, C. M. Nantais37, H. A. Tanaka38, S. Tobayama39, M. Goldhaber40, W. R. Kropp41, S. Mine42, P. Weatherly43, M. B. Smy44, H. W. Sobel45, V. Takhistov46, K. S. Ganezer47, B. L. Hartfiel48, J. Hill49, N. Hong50, J. Y. Kim51, I. T. Lim52, R. G. Park53, A. Himmel54, Z. Li55, E. OSullivan56, K. Scholberg57, C. W. Walter58, T. Wongjirad59, T. Ishizuka60, S. Tasaka61, J. S. Jang62, J. G. Learned63, S. Matsuno64, S. N. Smith65, M. Friend66, T. Hasegawa67, T. Ishida68, T. Ishii69, T. Kobayashi70, T. Nakadaira71, K. Nakamura72, Y. Oyama73, K. Sakashita74, T. Sekiguchi75, T. Tsukamoto76, A. T. Suzuki77, Y. Takeuchi78, T. Yano79, S. V. Cao80, T. Hiraki81, S. Hirota82, K. Huang83, T. Kikawa84, A. Minamino85, T. Nakaya86, K. Suzuki87, Y. Fukuda88, K. Choi89, Y. Itow90, T. Suzuki91, P. Mijakowski92, K. Frankiewicz93, J. Hignight94, J. Imber95, C. K. Jung96, X. Li97, J. L. Palomino98, M. J. Wilking99, C. Yanagisawa100, D. Fukuda101, H. Ishino102, T. Kayano103, A. Kibayashi104, Y. Koshio105, T. Mori106, M. Sakuda107, C. Xu108, Y. Kuno109, R. Tacik110, S. B. Kim111, H. Okazawa112, Y. Choi113, K. Nishijima114, M. Koshiba115, Y. Totsuka116, Y. Suda117, M. Yokoyama118, C. Bronner119, M. Hartz120, K. Martens121, Ll. Marti122, Y. Suzuki123, M. R. Vagins124, J. F. Martin125, A. Konaka126, S. Chen127, Y. Zhang128, R. J. Wilkes129
Affiliations: 1The Super-Kamiokande Collaboration, 2The Super-Kamiokande Collaboration, 3The Super-Kamiokande Collaboration, 4The Super-Kamiokande Collaboration, 5The Super-Kamiokande Collaboration, 6The Super-Kamiokande Collaboration, 7The Super-Kamiokande Collaboration, 8The Super-Kamiokande Collaboration, 9The Super-Kamiokande Collaboration, 10The Super-Kamiokande Collaboration, 11The Super-Kamiokande Collaboration, 12The Super-Kamiokande Collaboration, 13The Super-Kamiokande Collaboration, 14The Super-Kamiokande Collaboration, 15The Super-Kamiokande Collaboration, 16The Super-Kamiokande Collaboration, 17The Super-Kamiokande Collaboration, 18The Super-Kamiokande Collaboration, 19The Super-Kamiokande Collaboration, 20The Super-Kamiokande Collaboration, 21The Super-Kamiokande Collaboration, 22The Super-Kamiokande Collaboration, 23The Super-Kamiokande Collaboration, 24The Super-Kamiokande Collaboration, 25The Super-Kamiokande Collaboration, 26The Super-Kamiokande Collaboration, 27The Super-Kamiokande Collaboration, 28The Super-Kamiokande Collaboration, 29The Super-Kamiokande Collaboration, 30The Super-Kamiokande Collaboration, 31The Super-Kamiokande Collaboration, 32The Super-Kamiokande Collaboration, 33The Super-Kamiokande Collaboration, 34The Super-Kamiokande Collaboration, 35The Super-Kamiokande Collaboration, 36The Super-Kamiokande Collaboration, 37The Super-Kamiokande Collaboration, 38The Super-Kamiokande Collaboration, 39The Super-Kamiokande Collaboration, 40The Super-Kamiokande Collaboration, 41The Super-Kamiokande Collaboration, 42The Super-Kamiokande Collaboration, 43The Super-Kamiokande Collaboration, 44The Super-Kamiokande Collaboration, 45The Super-Kamiokande Collaboration, 46The Super-Kamiokande Collaboration, 47The Super-Kamiokande Collaboration, 48The Super-Kamiokande Collaboration, 49The Super-Kamiokande Collaboration, 50The Super-Kamiokande Collaboration, 51The Super-Kamiokande Collaboration, 52The Super-Kamiokande Collaboration, 53The Super-Kamiokande Collaboration, 54The Super-Kamiokande Collaboration, 55The Super-Kamiokande Collaboration, 56The Super-Kamiokande Collaboration, 57The Super-Kamiokande Collaboration, 58The Super-Kamiokande Collaboration, 59The Super-Kamiokande Collaboration, 60The Super-Kamiokande Collaboration, 61The Super-Kamiokande Collaboration, 62The Super-Kamiokande Collaboration, 63The Super-Kamiokande Collaboration, 64The Super-Kamiokande Collaboration, 65The Super-Kamiokande Collaboration, 66The Super-Kamiokande Collaboration, 67The Super-Kamiokande Collaboration, 68The Super-Kamiokande Collaboration, 69The Super-Kamiokande Collaboration, 70The Super-Kamiokande Collaboration, 71The Super-Kamiokande Collaboration, 72The Super-Kamiokande Collaboration, 73The Super-Kamiokande Collaboration, 74The Super-Kamiokande Collaboration, 75The Super-Kamiokande Collaboration, 76The Super-Kamiokande Collaboration, 77The Super-Kamiokande Collaboration, 78The Super-Kamiokande Collaboration, 79The Super-Kamiokande Collaboration, 80The Super-Kamiokande Collaboration, 81The Super-Kamiokande Collaboration, 82The Super-Kamiokande Collaboration, 83The Super-Kamiokande Collaboration, 84The Super-Kamiokande Collaboration, 85The Super-Kamiokande Collaboration, 86The Super-Kamiokande Collaboration, 87The Super-Kamiokande Collaboration, 88The Super-Kamiokande Collaboration, 89The Super-Kamiokande Collaboration, 90The Super-Kamiokande Collaboration, 91The Super-Kamiokande Collaboration, 92The Super-Kamiokande Collaboration, 93The Super-Kamiokande Collaboration, 94The Super-Kamiokande Collaboration, 95The Super-Kamiokande Collaboration, 96The Super-Kamiokande Collaboration, 97The Super-Kamiokande Collaboration, 98The Super-Kamiokande Collaboration, 99The Super-Kamiokande Collaboration, 100The Super-Kamiokande Collaboration, 101The Super-Kamiokande Collaboration, 102The Super-Kamiokande Collaboration, 103The Super-Kamiokande Collaboration, 104The Super-Kamiokande Collaboration, 105The Super-Kamiokande Collaboration, 106The Super-Kamiokande Collaboration, 107The Super-Kamiokande Collaboration, 108The Super-Kamiokande Collaboration, 109The Super-Kamiokande Collaboration, 110The Super-Kamiokande Collaboration, 111The Super-Kamiokande Collaboration, 112The Super-Kamiokande Collaboration, 113The Super-Kamiokande Collaboration, 114The Super-Kamiokande Collaboration, 115The Super-Kamiokande Collaboration, 116The Super-Kamiokande Collaboration, 117The Super-Kamiokande Collaboration, 118The Super-Kamiokande Collaboration, 119The Super-Kamiokande Collaboration, 120The Super-Kamiokande Collaboration, 121The Super-Kamiokande Collaboration, 122The Super-Kamiokande Collaboration, 123The Super-Kamiokande Collaboration, 124The Super-Kamiokande Collaboration, 125The Super-Kamiokande Collaboration, 126The Super-Kamiokande Collaboration, 127The Super-Kamiokande Collaboration, 128The Super-Kamiokande Collaboration, 129The Super-Kamiokande Collaboration

A comprehensive study on the atmospheric neutrino flux in the energy region from sub-GeV up to several TeV using the Super-Kamiokande water Cherenkov detector is presented in this paper. The energy and azimuthal spectra of the atmospheric ${\nu}_e+{\bar{\nu}}_e$ and ${\nu}_{\mu}+{\bar{\nu}}_{\mu}$ fluxes are measured. The energy spectra are obtained using an iterative unfolding method by combining various event topologies with differing energy responses. Read More