R. G. Water - Fermilab Lattice and MILC Collaborations

R. G. Water
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R. G. Water
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Fermilab Lattice and MILC Collaborations
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High Energy Physics - Lattice (33)
 
High Energy Physics - Phenomenology (26)
 
High Energy Physics - Experiment (22)
 
Physics - Instrumentation and Detectors (14)
 
Nuclear Experiment (3)
 
Nuclear Theory (1)
 
Cosmology and Nongalactic Astrophysics (1)
 
Physics - Accelerator Physics (1)

Publications Authored By R. G. Water

2017May
Authors: MicroBooNE collaboration, R. Acciarri, C. Adams, R. An, J. Anthony, J. Asaadi, M. Auger, L. Bagby, S. Balasubramanian, B. Baller, C. Barnes, G. Barr, M. Bass, F. Bay, M. Bishai, A. Blake, T. Bolton, B. Bullard, L. Camilleri, D. Caratelli, B. Carls, R. Castillo Fernandez, F. Cavanna, H. Chen, E. Church, D. Cianci, E. Cohen, G. H. Collin, J. M. Conrad, M. Convery, J. I. Crespo-Anadon, G. De Geronimo, M. Del Tutto, D. Devitt, S. Dytman, B. Eberly, A. Ereditato, L. Escudero Sanchez, J. Esquivel, A. A. Fadeeva, B. T. Fleming, W. Foreman, A. P. Furmanski, D. Garcia-Gamez, G. T. Garvey, V. Genty, D. Goeldi, S. Gollapinni, N. Graf, E. Gramellini, H. Greenlee, R. Grosso, R. Guenette, A. Hackenburg, P. Hamilton, O. Hen, J. Hewes, C. Hill, J. Ho, G. Horton-Smith, A. Hourlier, E. -C. Huang, C. James, J. Jan de Vries, C. -M. Jen, L. Jiang, R. A. Johnson, J. Joshi, H. Jostlein, D. Kaleko, G. Karagiorgi, W. Ketchum, B. Kirby, M. Kirby, T. Kobilarcik, I. Kreslo, A. Laube, S. Li, Y. Li, A. Lister, B. R. Littlejohn, S. Lockwitz, D. Lorca, W. C. Louis, M. Luethi, B. Lundberg, X. Luo, A. Marchionni, C. Mariani, J. Marshall, D. A. Martinez Caicedo, V. Meddage, T. Miceli, G. B. Mills, J. Moon, M. Mooney, C. D. Moore, J. Mousseau, R. Murrells, D. Naples, P. Nienaber, J. Nowak, O. Palamara, V. Paolone, V. Papavassiliou, S. F. Pate, Z. Pavlovic, E. Piasetzky, D. Porzio, G. Pulliam, X. Qian, J. L. Raaf, V. Radeka, A. Rafique, S. Rescia, L. Rochester, C. Rudolf von Rohr, B. Russell, D. W. Schmitz, A. Schukraft, W. Seligman, M. H. Shaevitz, J. Sinclair, A. Smith, E. L. Snider, M. Soderberg, S. Soldner-Rembold, S. R. Soleti, P. Spentzouris, J. Spitz, J. St. John, T. Strauss, A. M. Szelc, N. Tagg, K. Terao, M. Thomson, C. Thorn, M. Toups, Y. -T. Tsai, S. Tufanli, T. Usher, W. Van De Pontseele, R. G. Van de Water, B. Viren, M. Weber, D. A. Wickremasinghe, S. Wolbers, T. Wongjirad, K. Woodruff, T. Yang, L. Yates, B. Yu, G. P. Zeller, J. Zennamo, C. Zhang

The low-noise operation of readout electronics in a liquid argon time projection chamber (LArTPC) is critical to properly extract the distribution of ionization charge deposited on the wire planes of the TPC, especially for the induction planes. This paper describes the characteristics and mitigation of the observed noise in the MicroBooNE detector. The MicroBooNE's single-phase LArTPC comprises two induction planes and one collection sense wire plane with a total of 8256 wires. Read More

2017Apr
Authors: MicroBooNE collaboration, R. Acciarri, C. Adams, R. An, J. Anthony, J. Asaadi, M. Auger, L. Bagby, S. Balasubramanian, B. Baller, C. Barnes, G. Barr, M. Bass, F. Bay, M. Bishai, A. Blake, T. Bolton, L. Bugel, L. Camilleri, D. Caratelli, B. Carls, R. Castillo Fernandez, F. Cavanna, H. Chen, E. Church, D. Cianci, E. Cohen, G. H. Collin, J. M. Conrad, M. Convery, J. I. Crespo-Anadon, M. Del Tutto, D. Devitt, S. Dytman, B. Eberly, A. Ereditato, L. Escudero Sanchez, J. Esquivel, B. T. Fleming, W. Foreman, A. P. Furmanski, D. Garcia-Gamez, G. T. Garvey, V. Genty, D. Goeldi, S. Gollapinni, N. Graf, E. Gramellini, H. Greenlee, R. Grosso, R. Guenette, A. Hackenburg, P. Hamilton, O. Hen, J. Hewes, C. Hill, J. Ho, G. Horton-Smith, E. -C. Huang, C. James, J. Jan de Vries, C. -M. Jen, L. Jiang, R. A. Johnson, J. Joshi, H. Jostlein, D. Kaleko, G. Karagiorgi, W. Ketchum, B. Kirby, M. Kirby, T. Kobilarcik, I. Kreslo, A. Laube, Y. Li, A. Lister, B. R. Littlejohn, S. Lockwitz, D. Lorca, W. C. Louis, M. Luethi, B. Lundberg, X. Luo, A. Marchionni, C. Mariani, J. Marshall, D. A. Martinez Caicedo, V. Meddage, T. Miceli, G. B. Mills, J. Moon, M. Mooney, C. D. Moore, J. Mousseau, R. Murrells, D. Naples, P. Nienaber, J. Nowak, O. Palamara, V. Paolone, V. Papavassiliou, S. F. Pate, Z. Pavlovic, E. Piasetzky, D. Porzio, G. Pulliam, X. Qian, J. L. Raaf, A. Rafique, L. Rochester, C. Rudolf von Rohr, B. Russell, D. W. Schmitz, A. Schukraft, W. Seligman, M. H. Shaevitz, J. Sinclair, E. L. Snider, M. Soderberg, S. Soldner-Rembold, S. R. Soleti, P. Spentzouris, J. Spitz, J. St. John, T. Strauss, K. A. Sutton, A. M. Szelc, N. Tagg, K. Terao, M. Thomson, M. Toups, Y. -T. Tsai, S. Tufanli, T. Usher, R. G. Van de Water, B. Viren, M. Weber, D. A. Wickremasinghe, S. Wolbers, T. Wongjirad, K. Woodruff, T. Yang, L. Yates, G. P. Zeller, J. Zennamo, C. Zhang

The MicroBooNE liquid argon time projection chamber (LArTPC) has been taking data at Fermilab since 2015 collecting, in addition to neutrino beam, cosmic-ray muons. Results are presented on the reconstruction of Michel electrons produced by the decay at rest of cosmic-ray muons. Michel electrons are abundantly produced in the TPC, and given their well known energy spectrum can be used to study MicroBooNE's detector response to low-energy electrons (electrons with energies up to ~50 MeV). Read More

2017Mar
Authors: MicroBooNE collaboration, P. Abratenko, R. Acciarri, C. Adams, R. An, J. Asaadi, M. Auger, L. Bagby, S. Balasubramanian, B. Baller, C. Barnes, G. Barr, M. Bass, F. Bay, M. Bishai, A. Blake, T. Bolton, L. Bugel, L. Camilleri, D. Caratelli, B. Carls, R. Castillo Fernandez, F. Cavanna, H. Chen, E. Church, D. Cianci, E. Cohen, G. H. Collin, J. M. Conrad, M. Convery, J. I. Crespo-Anadon, M. Del Tutto, D. Devitt, S. Dytman, B. Eberly, A. Ereditato, L. Escudero Sanchez, J. Esquivel, B. T. Fleming, W. Foreman, A. P. Furmanski, D. Garcia-Gamez, G. T. Garvey, V. Genty, D. Goeldi, S. Gollapinni, N. Graf, E. Gramellini, H. Greenlee, R. Grosso, R. Guenette, A. Hackenburg, P. Hamilton, O. Hen, J. Hewes, C. Hill, J. Ho, G. Horton-Smith, E. -C. Huang, C. James, J. Jan de Vries, C. -M. Jen, L. Jiang, R. A. Johnson, B. J. P. Jones, J. Joshi, H. Jostlein, D. Kaleko, L. N. Kalousis, G. Karagiorgi, W. Ketchum, B. Kirby, M. Kirby, T. Kobilarcik, I. Kreslo, A. Laube, Y. Li, A. Lister, B. R. Littlejohn, S. Lockwitz, D. Lorca, W. C. Louis, M. Luethi, B. Lundberg, X. Luo, A. Marchionni, C. Mariani, J. Marshall, D. A. Martinez Caicedo, V. Meddage, T. Miceli, G. B. Mills, J. Moon, M. Mooney, C. D. Moore, J. Mousseau, R. Murrells, D. Naples, P. Nienaber, J. Nowak, O. Palamara, V. Paolone, V. Papavassiliou, S. F. Pate, Z. Pavlovic, E. Piasetzky, D. Porzio, G. Pulliam, X. Qian, J. L. Raaf, A. Rafique, L. Rochester, C. Rudolf von Rohr, B. Russell, D. W. Schmitz, A. Schukraft, W. Seligman, M. H. Shaevitz, J. Sinclair, E. L. Snider, M. Soderberg, S. Soldner-Rembold, S. R. Soleti, P. Spentzouris, J. Spitz, J. St. John, T. Strauss, A. M. Szelc, N. Tagg, K. Terao, M. Thomson, M. Toups, Y. -T. Tsai, S. Tufanli, T. Usher, R. G. Van de Water, B. Viren, M. Weber, J. Weston, D. A. Wickremasinghe, S. Wolbers, T. Wongjirad, K. Woodruff, T. Yang, L. Yates, G. P. Zeller, J. Zennamo, C. Zhang

We discuss a technique for measuring a charged particle's momentum by means of multiple Coulomb scattering (MCS) in the MicroBooNE liquid argon time projection chamber (LArTPC). This method does not require the full particle ionization track to be contained inside of the detector volume as other track momentum reconstruction methods do (range-based momentum reconstruction and calorimetric momentum reconstruction). We motivate use of this technique, describe a tuning of the underlying phenomenological formula, quantify its performance on fully contained beam-neutrino-induced muon tracks both in simulation and in data, and quantify its performance on exiting muon tracks in simulation. Read More

The MiniBooNE-DM collaboration searched for vector-boson mediated production of dark matter using the Fermilab 8 GeV Booster proton beam in a dedicated run with $1.86 \times 10^{20}$ protons delivered to a steel beam dump. The MiniBooNE detector, 490~m downstream, is sensitive to dark matter via elastic scattering with nucleons in the detector mineral oil. Read More

We present results for neutral D-meson mixing in 2+1-flavor lattice QCD. We compute the matrix elements for all five operators that contribute to D mixing at short distances, including those that only arise beyond the Standard Model. Our results have an uncertainty similar to those of the ETM collaboration (with 2 and with 2+1+1 flavors). Read More

2016Dec
Authors: MicroBooNE Collaboration, R. Acciarri, C. Adams, R. An, A. Aparicio, S. Aponte, J. Asaadi, M. Auger, N. Ayoub, L. Bagby, B. Baller, R. Barger, G. Barr, M. Bass, F. Bay, K. Biery, M. Bishai, A. Blake, V. Bocean, D. Boehnlein, V. D. Bogert, T. Bolton, L. Bugel, C. Callahan, L. Camilleri, D. Caratelli, B. Carls, R. Castillo Fernandez, F. Cavanna, S. Chappa, H. Chen, K. Chen, C. Y. Chi, C. S. Chiu, E. Church, D. Cianci, G. H. Collin, J. M. Conrad, M. Convery, J. Cornele, P. Cowan, J. I. Crespo-Anadon, G. Crutcher, C. Darve, R. Davis, M. Del Tutto, D. Devitt, S. Duffin, S. Dytman, B. Eberly, A. Ereditato, D. Erickson, L. Escudero Sanchez, J. Esquivel, S. Farooq, J. Farrell, D. Featherston, B. T. Fleming, W. Foreman, A. P. Furmanski, V. Genty, M. Geynisman, D. Goeldi, B. Goff, S. Gollapinni, N. Graf, E. Gramellini, J. Green, A. Greene, H. Greenlee, T. Griffin, R. Grosso, R. Guenette, A. Hackenburg, R. Haenni, P. Hamilton, P. Healey, O. Hen, E. Henderson, J. Hewes, C. Hill, K. Hill, L. Himes, J. Ho, G. Horton-Smith, D. Huffman, C. M. Ignarra, C. James, E. James, J. Jan de Vries, W. Jaskierny, C. M. Jen, L. Jiang, B. Johnson, M. Johnson, R. A. Johnson, B. J. P. Jones, J. Joshi, H. Jostlein, D. Kaleko, L. N. Kalousis, G. Karagiorgi, T. Katori, P. Kellogg, W. Ketchum, J. Kilmer, B. King, B. Kirby, M. Kirby, E. Klein, T. Kobilarcik, I. Kreslo, R. Krull, R. Kubinski, G. Lange, F. Lanni, A. Lathrop, A. Laube, W. M. Lee, Y. Li, D. Lissauer, A. Lister, B. R. Littlejohn, S. Lockwitz, D. Lorca, W. C. Louis, G. Lukhanin, M. Luethi, B. Lundberg, X. Luo, G. Mahler, I. Majoros, D. Makowiecki, A. Marchionni, C. Mariani, D. Markley, J. Marshall, D. A. Martinez Caicedo, K. T. McDonald, D. McKee, A. McLean, J. Mead, V. Meddage, T. Miceli, G. B. Mills, W. Miner, J. Moon, M. Mooney, C. D. Moore, Z. Moss, J. Mousseau, R. Murrells, D. Naples, P. Nienaber, B. Norris, N. Norton, J. Nowak, M. OBoyle, T. Olszanowski, O. Palamara, V. Paolone, V. Papavassiliou, S. F. Pate, Z. Pavlovic, R. Pelkey, M. Phipps, S. Pordes, D. Porzio, G. Pulliam, X. Qian, J. L. Raaf, V. Radeka, A. Rafique, R. A Rameika, B. Rebel, R. Rechenmacher, S. Rescia, L. Rochester, C. Rudolf von Rohr, A. Ruga, B. Russell, R. Sanders, W. R. Sands III, M. Sarychev, D. W. Schmitz, A. Schukraft, R. Scott, W. Seligman, M. H. Shaevitz, M. Shoun, J. Sinclair, W. Sippach, T. Smidt, A. Smith, E. L. Snider, M. Soderberg, M. Solano-Gonzalez, S. Soldner-Rembold, S. R. Soleti, J. Sondericker, P. Spentzouris, J. Spitz, J. St. John, T. Strauss, K. Sutton, A. M. Szelc, K. Taheri, N. Tagg, K. Tatum, J. Teng, K. Terao, M. Thomson, C. Thorn, J. Tillman, M. Toups, Y. T. Tsai, S. Tufanli, T. Usher, M. Utes, R. G. Van de Water, C. Vendetta, S. Vergani, E. Voirin, J. Voirin, B. Viren, P. Watkins, M. Weber, T. Wester, J. Weston, D. A. Wickremasinghe, S. Wolbers, T. Wongjirad, K. Woodruff, K. C. Wu, T. Yang, B. Yu, G. P. Zeller, J. Zennamo, C. Zhang, M. Zuckerbrot

This paper describes the design and construction of the MicroBooNE liquid argon time projection chamber and associated systems. MicroBooNE is the first phase of the Short Baseline Neutrino program, located at Fermilab, and will utilize the capabilities of liquid argon detectors to examine a rich assortment of physics topics. In this document details of design specifications, assembly procedures, and acceptance tests are reported. Read More

We present a progress report on our calculation of the decay constants $f_B$ and $f_{B_s}$ from lattice-QCD simulations with highly-improved staggered quarks. Simulations are carried out with several heavy valence-quark masses on $(2+1+1)$-flavor ensembles that include charm sea quarks. We include data at six lattice spacings and several light sea-quark masses, including an approximately physical-mass ensemble at all but the smallest lattice spacing, 0. Read More

2016Nov
Authors: MicroBooNE collaboration, R. Acciarri, C. Adams, R. An, J. Asaadi, M. Auger, L. Bagby, B. Baller, G. Barr, M. Bass, F. Bay, M. Bishai, A. Blake, T. Bolton, L. Bugel, L. Camilleri, D. Caratelli, B. Carls, R. Castillo Fernandez, F. Cavanna, H. Chen, E. Church, D. Cianci, G. H. Collin, J. M. Conrad, M. Convery, J. I. Crespo-Anadón, M. Del Tutto, D. Devitt, S. Dytman, B. Eberly, A. Ereditato, L. Escudero Sanchez, J. Esquivel, B. T. Fleming, W. Foreman, A. P. Furmanski, G. T. Garvey, V. Genty, D. Goeldi, S. Gollapinni, N. Graf, E. Gramellini, H. Greenlee, R. Grosso, R. Guenette, A. Hackenburg, P. Hamilton, O. Hen, J. Hewes, C. Hill, J. Ho, G. Horton-Smith, C. James, J. Jan de Vries, C. -M. Jen, L. Jiang, R. A. Johnson, B. J. P. Jones, J. Joshi, H. Jostlein, D. Kaleko, G. Karagiorgi, W. Ketchum, B. Kirby, M. Kirby, T. Kobilarcik, I. Kreslo, A. Laube, Y. Li, A. Lister, B. R. Littlejohn, S. Lockwitz, D. Lorca, W. C. Louis, M. Luethi, B. Lundberg, X. Luo, A. Marchionni, C. Mariani, J. Marshall, D. A. Martinez Caicedo, V. Meddage, T. Miceli, G. B. Mills, J. Moon, M. Mooney, C. D. Moore, J. Mousseau, R. Murrells, D. Naples, P. Nienaber, J. Nowak, O. Palamara, V. Paolone, V. Papavassiliou, S. F. Pate, Z. Pavlovic, D. Porzio, G. Pulliam, X. Qian, J. L. Raaf, A. Rafique, L. Rochester, C. Rudolf von Rohr, B. Russell, D. W. Schmitz, A. Schukraft, W. Seligman, M. H. Shaevitz, J. Sinclair, E. L. Snider, M. Soderberg, S. Söldner-Rembold, S. R. Soleti, P. Spentzouris, J. Spitz, J. St. John, T. Strauss, A. M. Szelc, N. Tagg, K. Terao, M. Thomson, M. Toups, Y. -T. Tsai, S. Tufanli, T. Usher, R. G. Van de Water, B. Viren, M. Weber, J. Weston, D. A. Wickremasinghe, S. Wolbers, T. Wongjirad, K. Woodruff, T. Yang, G. P. Zeller, J. Zennamo, C. Zhang

We present several studies of convolutional neural networks applied to data coming from the MicroBooNE detector, a liquid argon time projection chamber (LArTPC). The algorithms studied include the classification of single particle images, the localization of single particle and neutrino interactions in an image, and the detection of a simulated neutrino event overlaid with cosmic ray backgrounds taken from real detector data. These studies demonstrate the potential of convolutional neural networks for particle identification or event detection on simulated neutrino interactions. Read More

We discuss the reduction of errors in the calculation of the form factor $f_+^{K \pi}(0)$ with HISQ fermions on the $N_f=2+1+1$ MILC configurations from increased statistics on some key ensembles, new data on ensembles with lattice spacings down to 0.042 fm and the study of finite-volume effects within staggered ChPT. We also study the implications for the unitarity of the CKM matrix in the first row and for current tensions with leptonic determinations of $\vert V_{us}\vert$. Read More

The JSNS$^2$ (J-PARC E56) experiment aims to search for a sterile neutrino at the J-PARC Materials and Life Sciences Experimental Facility (MLF). After the submission of a proposal to the J-PARC PAC, Stage-1 approval was granted to the JSNS$^2$ experiment on April 2015.This approval followed a series of background measurements which were performed in 2014. Read More

2016Aug
Authors: Jim Alexander, Marco Battaglieri, Bertrand Echenard, Rouven Essig, Matthew Graham, Eder Izaguirre, John Jaros, Gordan Krnjaic, Jeremy Mardon, David Morrissey, Tim Nelson, Maxim Perelstein, Matt Pyle, Adam Ritz, Philip Schuster, Brian Shuve, Natalia Toro, Richard G Van De Water, Daniel Akerib, Haipeng An, Konrad Aniol, Isaac J. Arnquist, David M. Asner, Henning O. Back, Keith Baker, Nathan Baltzell, Dipanwita Banerjee, Brian Batell, Daniel Bauer, James Beacham, Jay Benesch, James Bjorken, Nikita Blinov, Celine Boehm, Mariangela Bondí, Walter Bonivento, Fabio Bossi, Stanley J. Brodsky, Ran Budnik, Stephen Bueltmann, Masroor H. Bukhari, Raymond Bunker, Massimo Carpinelli, Concetta Cartaro, David Cassel, Gianluca Cavoto, Andrea Celentano, Animesh Chaterjee, Saptarshi Chaudhuri, Gabriele Chiodini, Hsiao-Mei Sherry Cho, Eric D. Church, D. A. Cooke, Jodi Cooley, Robert Cooper, Ross Corliss, Paolo Crivelli, Francesca Curciarello, Annalisa D'Angelo, Hooman Davoudiasl, Marzio De Napoli, Raffaella De Vita, Achim Denig, Patrick deNiverville, Abhay Deshpande, Ranjan Dharmapalan, Bogdan Dobrescu, Sergey Donskov, Raphael Dupre, Juan Estrada, Stuart Fegan, Torben Ferber, Clive Field, Enectali Figueroa-Feliciano, Alessandra Filippi, Bartosz Fornal, Arne Freyberger, Alexander Friedland, Iftach Galon, Susan Gardner, Francois-Xavier Girod, Sergei Gninenko, Andrey Golutvin, Stefania Gori, Christoph Grab, Enrico Graziani, Keith Griffioen, Andrew Haas, Keisuke Harigaya, Christopher Hearty, Scott Hertel, JoAnne Hewett, Andrew Hime, David Hitlin, Yonit Hochberg, Roy J. Holt, Maurik Holtrop, Eric W. Hoppe, Todd W. Hossbach, Lauren Hsu, Phil Ilten, Joe Incandela, Gianluca Inguglia, Kent Irwin, Igal Jaegle, Robert P. Johnson, Yonatan Kahn, Grzegorz Kalicy, Zhong-Bo Kang, Vardan Khachatryan, Venelin Kozhuharov, N. V. Krasnikov, Valery Kubarovsky, Eric Kuflik, Noah Kurinsky, Ranjan Laha, Gaia Lanfranchi, Dale Li, Tongyan Lin, Mariangela Lisanti, Kun Liu, Ming Liu, Ben Loer, Dinesh Loomba, Valery E. Lyubovitskij, Aaron Manalaysay, Giuseppe Mandaglio, Jeremiah Mans, W. J. Marciano, Thomas Markiewicz, Luca Marsicano, Takashi Maruyama, Victor A. Matveev, David McKeen, Bryan McKinnon, Dan McKinsey, Harald Merkel, Jeremy Mock, Maria Elena Monzani, Omar Moreno, Corina Nantais, Sebouh Paul, Michael Peskin, Vladimir Poliakov, Antonio D Polosa, Maxim Pospelov, Igor Rachek, Balint Radics, Mauro Raggi, Nunzio Randazzo, Blair Ratcliff, Alessandro Rizzo, Thomas Rizzo, Alan Robinson, Andre Rubbia, David Rubin, Dylan Rueter, Tarek Saab, Elena Santopinto, Richard Schnee, Jessie Shelton, Gabriele Simi, Ani Simonyan, Valeria Sipala, Oren Slone, Elton Smith, Daniel Snowden-Ifft, Matthew Solt, Peter Sorensen, Yotam Soreq, Stefania Spagnolo, James Spencer, Stepan Stepanyan, Jan Strube, Michael Sullivan, Arun S. Tadepalli, Tim Tait, Mauro Taiuti, Philip Tanedo, Rex Tayloe, Jesse Thaler, Nhan V. Tran, Sean Tulin, Christopher G. Tully, Sho Uemura, Maurizio Ungaro, Paolo Valente, Holly Vance, Jerry Vavra, Tomer Volansky, Belina von Krosigk, Andrew Whitbeck, Mike Williams, Peter Wittich, Bogdan Wojtsekhowski, Wei Xue, Jong Min Yoon, Hai-Bo Yu, Jaehoon Yu, Tien-Tien Yu, Yue Zhang, Yue Zhao, Yiming Zhong, Kathryn Zurek

This report, based on the Dark Sectors workshop at SLAC in April 2016, summarizes the scientific importance of searches for dark sector dark matter and forces at masses beneath the weak-scale, the status of this broad international field, the important milestones motivating future exploration, and promising experimental opportunities to reach these milestones over the next 5-10 years. Read More

2016Jun
Affiliations: 1NISER, 2University of Iowa, 3Washington University, 4University of Utah, 5School of the Art Institute of Chicago, 6University of Utah, 7Indiana University, 8American Physical Society, 9Washington University, 10Syracuse University, 11Washington University, 12Argonne National Laboratory, 13University of California, Santa Barbara, 14Indiana University, 15University of Arizona, 16Fermilab, 17Fermilab

The MILC Collaboration has completed production running of electromagnetic effects on light mesons using asqtad improved staggered quarks. In these calculations, we use quenched photons in the noncompact formalism. We study four lattice spacings from $\approx\!0. Read More

We calculate---for the first time in three-flavor lattice QCD---the hadronic matrix elements of all five local operators that contribute to neutral $B^0$- and $B_s$-meson mixing in and beyond the Standard Model. We present a complete error budget for each matrix element and also provide the full set of correlations among the matrix elements. We also present the corresponding bag parameters and their correlations, as well as specific combinations of the mixing matrix elements that enter the expression for the neutral $B$-meson width difference. Read More

The JSNS2 (J-PARC E56) experiment aims to search for sterile neutrinos at the J-PARC Materials and Life Sciences Experimental Facility (MLF).After the submission of a proposal to the J-PARC PAC, stage-1 approval was granted to the JSNS2 experiment. The approval followed a series of background measurements which were performed in 2014. Read More

2015Nov
Affiliations: 1Fermilab Lattice and MILC Collaborations, 2Fermilab Lattice and MILC Collaborations, 3Fermilab Lattice and MILC Collaborations, 4Fermilab Lattice and MILC Collaborations, 5Fermilab Lattice and MILC Collaborations, 6Fermilab Lattice and MILC Collaborations, 7Fermilab Lattice and MILC Collaborations, 8Fermilab Lattice and MILC Collaborations, 9Fermilab Lattice and MILC Collaborations, 10Fermilab Lattice and MILC Collaborations

We present a calculation of the $D\to K \ell \nu$ and $D\to\pi \ell \nu$ semileptonic form factors at $q^2=0$, which enable determinations of the CKM matrix elements $\lvert{V_{cs}}\rvert$ and $\lvert{V_{cd}}\rvert$, respectively. We use gauge-field configurations generated by the MILC collaboration with four flavors of highly-improved staggered (HISQ) quarks, analyzing several ensembles including those with physical pion masses and approximate lattice spacings ranging from 0.12~fm to 0. Read More

2015Nov
Affiliations: 1U Iowa, 2U Iowa, 3U Iowa, 4U Iowa, 5Wash U, 6William and Mary U, 7Wash U, 8U Utah, 9Syracuse U, 10U Illinois Urbana, 11School of the Art Institute of Chicago, 12U Granada, 13Indiana U, 14APS, 15Wash U, 16Fermilab, 17Syracuse U, 18U Utah, 19Fermilab, 20U Utah, 21U Arizona, 22U Utah, 23U Colorado, 24Fermilab, 25UC Santa Barbara, 26U Arizona, 27Fermilab, 28Fermilab

We give a progress report on a project aimed at a high-precision calculation of the decay constants $f_B$ and $f_{B_s}$ from simulations with HISQ heavy and light valence and sea quarks. Calculations are carried out with several heavy valence-quark masses on ensembles with 2+1+1 flavors of HISQ sea quarks at five lattice spacings and several light sea-quark mass ratios $m_{ud}/m_s$, including approximately physical sea-quark masses. This range of parameters provides excellent control of the continuum limit and of heavy-quark discretization errors. Read More

2015Oct
Affiliations: 1NISER, Bhubaneswar, 2University of Iowa, 3Washington University, 4University of Utah, 5School of the Art Institute of Chicago, 6University of Utah, 7Indiana University, 8American Physical Society, 9Washington University, 10Syracuse University, 11University of Utah, 12Indiana University, 13Argonne National Laboratory, 14University of California, Santa Barbara, 15Indiana University, 16University of Arizona, 17Fermilab, 18Fermilab

For some time, the MILC Collaboration has been studying electromagnetic effects on light mesons. These calculations use fully dynamical QCD, but only quenched photons, which suffices to NLO in XPT. That is, the sea quarks are electrically neutral, while the valence quarks carry charge. Read More

We study the exclusive semileptonic $B$-meson decays $B\to K(\pi)\ell^+\ell^-$, $B\to K(\pi)\nu\bar\nu$, and $B\to\pi\tau\nu$, computing observables in the Standard model using the recent lattice-QCD results for the underlying form factors from the Fermilab Lattice and MILC Collaborations. These processes provide theoretically clean windows into physics beyond the Standard Model because the hadronic uncertainties are now under good control for suitably binned observables. For example, the resulting partially integrated branching fractions for $B\to\pi\mu^+\mu^-$ and $B\to K\mu^+\mu^-$ outside the charmonium resonance region are 1-2$\sigma$ higher than the LHCb Collaboration's recent measurements, where the theoretical and experimental errors are commensurate. Read More

We compute the form factors for the $B \to Kl^+l^-$ semileptonic decay process in lattice QCD using gauge-field ensembles with 2+1 flavors of sea quark, generated by the MILC Collaboration. The ensembles span lattice spacings from 0.12 to 0. Read More

We review the physics of purely leptonic decays of $\pi^\pm$, $K^\pm$, $D^{\pm}$, $D_s^\pm$, and $B^\pm$ pseudoscalar mesons. The measured decay rates are related to the product of the relevant weak-interaction-based CKM matrix element of the constituent quarks and a strong interaction parameter related to the overlap of the quark and antiquark wave-functions in the meson, called the decay constant $f_P$. The leptonic decay constants for $\pi^\pm$, $K^\pm$, $D^{\pm}$, $D_s^\pm$, and $B^\pm$ mesons can be obtained with controlled theoretical uncertainties and high precision from {\it ab initio} lattice-QCD simulations. Read More

On April 2015, the J-PARC E56 (JSNS2: J-PARC Sterile Neutrino Search using neutrinos from J-PARC Spallation Neutron Source) experiment officially obtained stage-1 approval from J-PARC. We have since started to perform liquid scintillator R&D for improving energy resolution and fast neutron rejection. Also, we are studying Avalanche Photo-Diodes (SiPM) inside the liquid scintillator. Read More

The rare decay $B\to\pi\ell^+\ell^-$ arises from $b\to d$ flavor-changing neutral currents and could be sensitive to physics beyond the Standard Model. Here, we present the first $ab$-$initio$ QCD calculation of the $B\to\pi$ tensor form factor $f_T$. Together with the vector and scalar form factors $f_+$ and $f_0$ from our companion work [J. Read More

We report on a calculation of the B*Bpi coupling in lattice QCD. The strong matrix element for a B* to Bpi transition is directly related to the leading order low-energy constant in heavy meson chiral perturbation theory (HMChPT) for B mesons. We carry out our calculation directly at the b-quark mass using a non-perturbatively tuned clover action that controls discretization effects of order pa and (ma)^n for all n. Read More

The second workshop to discuss the development of liquid argon time projection chambers (LArTPCs) in the United States was held at Fermilab on July 8-9, 2014. The workshop was organized under the auspices of the Coordinating Panel for Advanced Detectors, a body that was initiated by the American Physical Society Division of Particles and Fields. All presentations at the workshop were made in six topical plenary sessions: $i)$ Argon Purity and Cryogenics, $ii)$ TPC and High Voltage, $iii)$ Electronics, Data Acquisition and Triggering, $iv)$ Scintillation Light Detection, $v)$ Calibration and Test Beams, and $vi)$ Software. Read More

2015Mar
Affiliations: 1Seoul Nat. U, 2Seoul Nat. U, 3Seoul Nat. U, 4Seoul Nat. U, 5BNL, 6Washington U, 7College of William and Mary, 8U. Utah, 9U. Illinois, 10U. Illinois, 11U. Utah, 12School of the Art Institute of Chicago, 13U. Granada, 14Indiana U, 15American Physical Society, 16Washington U, 17FNAL, 18Syracuse U, 19U. Utah, 20U. Colorado, 21FNAL, 22U. Iowa, 23U. Colorado, 24U. Utah, 25FNAL, 26U. California Santa Barbara, 27U. Arizona, 28FNAL, 29Indiana U

We present a lattice-QCD calculation of the $B\to\pi\ell\nu$ semileptonic form factors and a new determination of the CKM matrix element $|V_{ub}|$. We use the MILC asqtad 2+1-flavor lattice configurations at four lattice spacings and light-quark masses down to 1/20 of the physical strange-quark mass. We extrapolate the lattice form factors to the continuum using staggered chiral perturbation theory in the hard-pion and SU(2) limits. Read More

2015Mar
Affiliations: 1Seoul Nat. U, 2Seoul Nat. U, 3Seoul Nat. U, 4Seoul Nat. U, 5BNL, 6Washington U, 7College of William and Mary, 8U. Utah, 9U. Illinois, 10U. Illinois, 11U. Utah, 12School of the Art Institute of Chicago, 13U. Granada, 14Indiana U, 15American Physical Society, 16Washington U, 17FNAL, 18Syracuse U, 19U. Utah, 20FNAL, 21U. Colorado, 22U. Utah, 23FNAL, 24U. California Santa Barbara, 25U. Arizona, 26FNAL, 27Indiana U

We present the first unquenched lattice-QCD calculation of the hadronic form factors for the exclusive decay $\overline{B} \rightarrow D \ell \overline{\nu}$ at nonzero recoil. We carry out numerical simulations on fourteen ensembles of gauge-field configurations generated with 2+1 flavors of asqtad-improved staggered sea quarks. The ensembles encompass a wide range of lattice spacings (approximately 0. Read More

2015Mar
Authors: C. Adams, J. R. Alonso, A. M. Ankowski, J. A. Asaadi, J. Ashenfelter, S. N. Axani, K. Babu, C. Backhouse, H. R. Band, P. S. Barbeau, N. Barros, A. Bernstein, M. Betancourt, M. Bishai, E. Blucher, J. Bouffard, N. Bowden, S. Brice, C. Bryan, L. Camilleri, J. Cao, J. Carlson, R. E. Carr, A. Chatterjee, M. Chen, S. Chen, M. Chiu, E. D. Church, J. I. Collar, G. Collin, J. M. Conrad, M. R. Convery, R. L. Cooper, D. Cowen, H. Davoudiasl, A. De Gouvea, D. J. Dean, G. Deichert, F. Descamps, T. DeYoung, M. V. Diwan, Z. Djurcic, M. J. Dolinski, J. Dolph, B. Donnelly, D. A. Dwyer, S. Dytman, Y. Efremenko, L. L. Everett, A. Fava, E. Figueroa-Feliciano, B. Fleming, A. Friedland, B. K. Fujikawa, T. K. Gaisser, M. Galeazzi, D. C. Galehouse, A. Galindo-Uribarri, G. T. Garvey, S. Gautam, K. E. Gilje, M. Gonzalez-Garcia, M. C. Goodman, H. Gordon, E. Gramellini, M. P. Green, A. Guglielmi, R. W. Hackenburg, A. Hackenburg, F. Halzen, K. Han, S. Hans, D. Harris, K. M. Heeger, M. Herman, R. Hill, A. Holin, P. Huber, D. E. Jaffe, R. A. Johnson, J. Joshi, G. Karagiorgi, L. J. Kaufman, B. Kayser, S. H. Kettell, B. J. Kirby, J. R. Klein, Yu. G. Kolomensky, R. M. Kriske, C. E. Lane, T. J. Langford, A. Lankford, K. Lau, J. G. Learned, J. Ling, J. M. Link, D. Lissauer, L. Littenberg, B. R. Littlejohn, S. Lockwitz, M. Lokajicek, W. C. Louis, K. Luk, J. Lykken, W. J. Marciano, J. Maricic, D. M. Markoff, D. A. Martinez Caicedo, C. Mauger, K. Mavrokoridis, E. McCluskey, D. McKeen, R. McKeown, G. Mills, I. Mocioiu, B. Monreal, M. R. Mooney, J. G. Morfin, P. Mumm, J. Napolitano, R. Neilson, J. K. Nelson, M. Nessi, D. Norcini, F. Nova, D. R. Nygren, G. D. Orebi Gann, O. Palamara, Z. Parsa, R. Patterson, P. Paul, A. Pocar, X. Qian, J. L. Raaf, R. Rameika, G. Ranucci, H. Ray, D. Reyna, G. C. Rich, P. Rodrigues, E. Romero Romero, R. Rosero, S. D. Rountree, B. Rybolt, M. C. Sanchez, G. Santucci, D. Schmitz, K. Scholberg, D. Seckel, M. Shaevitz, R. Shrock, M. B. Smy, M. Soderberg, A. Sonzogni, A. B. Sousa, J. Spitz, J. M. St. John, J. Stewart, J. B. Strait, G. Sullivan, R. Svoboda, A. M. Szelc, R. Tayloe, M. A. Thomson, M. Toups, A. Vacheret, M. Vagins, R. G. Van de Water, R. B. Vogelaar, M. Weber, W. Weng, M. Wetstein, C. White, B. R. White, L. Whitehead, D. W. Whittington, M. J. Wilking, R. J. Wilson, P. Wilson, D. Winklehner, D. R. Winn, E. Worcester, L. Yang, M. Yeh, Z. W. Yokley, J. Yoo, B. Yu, J. Yu, C. Zhang

The US neutrino community gathered at the Workshop on the Intermediate Neutrino Program (WINP) at Brookhaven National Laboratory February 4-6, 2015 to explore opportunities in neutrino physics over the next five to ten years. Scientists from particle, astroparticle and nuclear physics participated in the workshop. The workshop examined promising opportunities for neutrino physics in the intermediate term, including possible new small to mid-scale experiments, US contributions to large experiments, upgrades to existing experiments, R&D plans and theory. Read More

We report on a scale determination with gradient-flow techniques on the $N_f=2+1+1$ highly improved staggered quark ensembles generated by the MILC Collaboration. The ensembles include four lattice spacings, ranging from approximately 0.15 to 0. Read More

2015Mar
Authors: R. Acciarri1, C. Adams2, R. An3, C. Andreopoulos4, A. M. Ankowski5, M. Antonello6, J. Asaadi7, W. Badgett8, L. Bagby9, B. Baibussinov10, B. Baller11, G. Barr12, N. Barros13, M. Bass14, V. Bellini15, P. Benetti16, S. Bertolucci17, K. Biery18, H. Bilokon19, M. Bishai20, A. Bitadze21, A. Blake22, F. Boffelli23, T. Bolton24, M. Bonesini25, J. Bremer26, S. J. Brice27, C. Bromberg28, L. Bugel29, E. Calligarich30, L. Camilleri31, D. Caratelli32, B. Carls33, F. Cavanna34, S. Centro35, H. Chen36, C. Chi37, E. Church38, D. Cianci39, A. G. Cocco40, G. H. Collin41, J. M. Conrad42, M. Convery43, G. De Geronimo44, A. Dermenev45, R. Dharmapalan46, S. Dixon47, Z. Djurcic48, S. Dytmam49, B. Eberly50, A. Ereditato51, J. Esquivel52, J. Evans53, A. Falcone54, C. Farnese55, A. Fava56, A. Ferrari57, B. T. Fleming58, W. M. Foreman59, J. Freestone60, T. Gamble61, G. Garvey62, V. Genty63, M. Geynisman64, D. Gibin65, S. Gninenko66, D. Göldi67, S. Gollapinni68, N. Golubev69, M. Graham70, E. Gramellini71, H. Greenlee72, R. Grosso73, R. Guenette74, A. Guglielmi75, A. Hackenburg76, R. Hänni77, O. Hen78, J. Hewes79, J. Ho80, G. Horton-Smith81, J. Howell82, A. Ivashkin83, C. James84, C. M. Jen85, R. A. Johnson86, B. J. P. Jones87, J. Joshi88, H. Jostlein89, D. Kaleko90, L. N. Kalousis91, G. Karagiorgi92, W. Ketchum93, B. Kirby94, M. Kirby95, M. Kirsanov96, J. Kisiel97, J. Klein98, J. Klinger99, T. Kobilarcik100, U. Kose101, I. Kreslo102, V. A. Kudryavtsev103, Y. Li104, B. Littlejohn105, D. Lissauer106, P. Livesly107, S. Lockwitz108, W. C. Louis109, M. Lüthi110, B. Lundberg111, F. Mammoliti112, G. Mannocchi113, A. Marchionni114, C. Mariani115, J. Marshall116, K. Mavrokoridis117, N. McCauley118, N. McConkey119, K. McDonald120, V. Meddage121, A. Menegolli122, G. Meng123, I. Mercer124, T. Miao125, T. Miceli126, G. B. Mills127, D. Mladenov128, C. Montanari129, D. Montanari130, J. Moon131, M. Mooney132, C. Moore133, Z. Moss134, M. H. Moulai135, S. Mufson136, R. Murrells137, D. Naples138, M. Nessi139, M. Nicoletto140, P. Nienaber141, B. Norris142, F. Noto143, J. Nowak144, S. Pal145, O. Palamara146, V. Paolone147, V. Papavassiliou148, S. Pate149, J. Pater150, Z. Pavlovic151, J. Perkin152, P. Picchi153, F. Pietropaolo154, P. Płoński155, S. Pordes156, R. Potenza157, G. Pulliam158, X. Qian159, L. Qiuguang160, J. L. Raaf161, V. Radeka162, R. Rameika163, A. Rappoldi164, G. L. Raselli165, P. N. Ratoff166, B. Rebel167, M. Richardson168, L. Rochester169, M. Rossella170, C. Rubbia171, C. Rudolf von Rohr172, B. Russell173, P. Sala174, A. Scaramelli175, D. W. Schmitz176, A. Schukraft177, W. Seligman178, M. H. Shaevitz179, B. Sippach180, E. Snider181, J. Sobczyk182, M. Soderberg183, S. Söldner-Rembold184, M. Spanu185, J. Spitz186, N. Spooner187, D. Stefan188, J. St. John189, T. Strauss190, R. Sulej191, C. M. Sutera192, A. M. Szelc193, N. Tagg194, C. E. Taylor195, K. Terao196, M. Thiesse197, L. Thompson198, M. Thomson199, C. Thorn200, M. Torti201, F. Tortorici202, M. Toups203, C. Touramanis204, Y. Tsai205, T. Usher206, R. Van de Water207, F. Varanini208, S. Ventura209, C. Vignoli210, T. Wachala211, M. Weber212, D. Whittington213, P. Wilson214, S. Wolbers215, T. Wongjirad216, K. Woodruff217, M. Xu218, T. Yang219, B. Yu220, A. Zani221, G. P. Zeller222, J. Zennamo223, C. Zhang224
Affiliations: 1MicroBooNE Collaboration, 2LAr1-ND Collaboration, 3MicroBooNE Collaboration, 4LAr1-ND Collaboration, 5LAr1-ND Collaboration, 6ICARUS-WA104 Collaboration, 7LAr1-ND Collaboration, 8LAr1-ND Collaboration, 9LAr1-ND Collaboration, 10ICARUS-WA104 Collaboration, 11LAr1-ND Collaboration, 12MicroBooNE Collaboration, 13LAr1-ND Collaboration, 14LAr1-ND Collaboration, 15ICARUS-WA104 Collaboration, 16ICARUS-WA104 Collaboration, 17ICARUS-WA104 Collaboration, 18ICARUS-WA104 Collaboration, 19ICARUS-WA104 Collaboration, 20LAr1-ND Collaboration, 21LAr1-ND Collaboration, 22MicroBooNE Collaboration, 23ICARUS-WA104 Collaboration, 24MicroBooNE Collaboration, 25ICARUS-WA104 Collaboration, 26ICARUS-WA104 Collaboration, 27MicroBooNE Collaboration, 28MicroBooNE Collaboration, 29LAr1-ND Collaboration, 30ICARUS-WA104 Collaboration, 31LAr1-ND Collaboration, 32MicroBooNE Collaboration, 33MicroBooNE Collaboration, 34LAr1-ND Collaboration, 35ICARUS-WA104 Collaboration, 36LAr1-ND Collaboration, 37LAr1-ND Collaboration, 38LAr1-ND Collaboration, 39LAr1-ND Collaboration, 40ICARUS-WA104 Collaboration, 41LAr1-ND Collaboration, 42LAr1-ND Collaboration, 43MicroBooNE Collaboration, 44LAr1-ND Collaboration, 45ICARUS-WA104 Collaboration, 46LAr1-ND Collaboration, 47LAr1-ND Collaboration, 48LAr1-ND Collaboration, 49MicroBooNE Collaboration, 50MicroBooNE Collaboration, 51LAr1-ND Collaboration, 52LAr1-ND Collaboration, 53LAr1-ND Collaboration, 54ICARUS-WA104 Collaboration, 55ICARUS-WA104 Collaboration, 56ICARUS-WA104 Collaboration, 57ICARUS-WA104 Collaboration, 58LAr1-ND Collaboration, 59LAr1-ND Collaboration, 60LAr1-ND Collaboration, 61LAr1-ND Collaboration, 62LAr1-ND Collaboration, 63LAr1-ND Collaboration, 64ICARUS-WA104 Collaboration, 65ICARUS-WA104 Collaboration, 66ICARUS-WA104 Collaboration, 67LAr1-ND Collaboration, 68MicroBooNE Collaboration, 69ICARUS-WA104 Collaboration, 70MicroBooNE Collaboration, 71LAr1-ND Collaboration, 72LAr1-ND Collaboration, 73MicroBooNE Collaboration, 74LAr1-ND Collaboration, 75ICARUS-WA104 Collaboration, 76LAr1-ND Collaboration, 77LAr1-ND Collaboration, 78MicroBooNE Collaboration, 79MicroBooNE Collaboration, 80LAr1-ND Collaboration, 81MicroBooNE Collaboration, 82LAr1-ND Collaboration, 83ICARUS-WA104 Collaboration, 84LAr1-ND Collaboration, 85LAr1-ND Collaboration, 86MicroBooNE Collaboration, 87LAr1-ND Collaboration, 88MicroBooNE Collaboration, 89MicroBooNE Collaboration, 90MicroBooNE Collaboration, 91LAr1-ND Collaboration, 92LAr1-ND Collaboration, 93LAr1-ND Collaboration, 94MicroBooNE Collaboration, 95MicroBooNE Collaboration, 96ICARUS-WA104 Collaboration, 97ICARUS-WA104 Collaboration, 98LAr1-ND Collaboration, 99LAr1-ND Collaboration, 100MicroBooNE Collaboration, 101ICARUS-WA104 Collaboration, 102LAr1-ND Collaboration, 103LAr1-ND Collaboration, 104MicroBooNE Collaboration, 105MicroBooNE Collaboration, 106LAr1-ND Collaboration, 107LAr1-ND Collaboration, 108MicroBooNE Collaboration, 109LAr1-ND Collaboration, 110LAr1-ND Collaboration, 111MicroBooNE Collaboration, 112ICARUS-WA104 Collaboration, 113ICARUS-WA104 Collaboration, 114MicroBooNE Collaboration, 115LAr1-ND Collaboration, 116MicroBooNE Collaboration, 117LAr1-ND Collaboration, 118LAr1-ND Collaboration, 119LAr1-ND Collaboration, 120MicroBooNE Collaboration, 121MicroBooNE Collaboration, 122ICARUS-WA104 Collaboration, 123ICARUS-WA104 Collaboration, 124LAr1-ND Collaboration, 125LAr1-ND Collaboration, 126MicroBooNE Collaboration, 127LAr1-ND Collaboration, 128ICARUS-WA104 Collaboration, 129ICARUS-WA104 Collaboration, 130LAr1-ND Collaboration, 131LAr1-ND Collaboration, 132MicroBooNE Collaboration, 133LAr1-ND Collaboration, 134LAr1-ND Collaboration, 135MicroBooNE Collaboration, 136LAr1-ND Collaboration, 137MicroBooNE Collaboration, 138MicroBooNE Collaboration, 139ICARUS-WA104 Collaboration, 140ICARUS-WA104 Collaboration, 141MicroBooNE Collaboration, 142LAr1-ND Collaboration, 143ICARUS-WA104 Collaboration, 144LAr1-ND Collaboration, 145LAr1-ND Collaboration, 146LAr1-ND Collaboration, 147MicroBooNE Collaboration, 148MicroBooNE Collaboration, 149MicroBooNE Collaboration, 150LAr1-ND Collaboration, 151LAr1-ND Collaboration, 152LAr1-ND Collaboration, 153ICARUS-WA104 Collaboration, 154ICARUS-WA104 Collaboration, 155ICARUS-WA104 Collaboration, 156MicroBooNE Collaboration, 157MicroBooNE Collaboration, 158LAr1-ND Collaboration, 159LAr1-ND Collaboration, 160LAr1-ND Collaboration, 161MicroBooNE Collaboration, 162LAr1-ND Collaboration, 163LAr1-ND Collaboration, 164ICARUS-WA104 Collaboration, 165ICARUS-WA104 Collaboration, 166LAr1-ND Collaboration, 167MicroBooNE Collaboration, 168LAr1-ND Collaboration, 169MicroBooNE Collaboration, 170ICARUS-WA104 Collaboration, 171ICARUS-WA104 Collaboration, 172LAr1-ND Collaboration, 173LAr1-ND Collaboration, 174ICARUS-WA104 Collaboration, 175ICARUS-WA104 Collaboration, 176LAr1-ND Collaboration, 177MicroBooNE Collaboration, 178MicroBooNE Collaboration, 179LAr1-ND Collaboration, 180LAr1-ND Collaboration, 181ICARUS-WA104 Collaboration, 182ICARUS-WA104 Collaboration, 183LAr1-ND Collaboration, 184LAr1-ND Collaboration, 185ICARUS-WA104 Collaboration, 186LAr1-ND Collaboration, 187LAr1-ND Collaboration, 188ICARUS-WA104 Collaboration, 189MicroBooNE Collaboration, 190LAr1-ND Collaboration, 191ICARUS-WA104 Collaboration, 192ICARUS-WA104 Collaboration, 193LAr1-ND Collaboration, 194MicroBooNE Collaboration, 195LAr1-ND Collaboration, 196LAr1-ND Collaboration, 197LAr1-ND Collaboration, 198LAr1-ND Collaboration, 199LAr1-ND Collaboration, 200LAr1-ND Collaboration, 201ICARUS-WA104 Collaboration, 202ICARUS-WA104 Collaboration, 203LAr1-ND Collaboration, 204LAr1-ND Collaboration, 205MicroBooNE Collaboration, 206MicroBooNE Collaboration, 207LAr1-ND Collaboration, 208ICARUS-WA104 Collaboration, 209ICARUS-WA104 Collaboration, 210ICARUS-WA104 Collaboration, 211ICARUS-WA104 Collaboration, 212LAr1-ND Collaboration, 213LAr1-ND Collaboration, 214MicroBooNE Collaboration, 215MicroBooNE Collaboration, 216LAr1-ND Collaboration, 217MicroBooNE Collaboration, 218MicroBooNE Collaboration, 219MicroBooNE Collaboration, 220LAr1-ND Collaboration, 221ICARUS-WA104 Collaboration, 222LAr1-ND Collaboration, 223LAr1-ND Collaboration, 224MicroBooNE Collaboration

A Short-Baseline Neutrino (SBN) physics program of three LAr-TPC detectors located along the Booster Neutrino Beam (BNB) at Fermilab is presented. This new SBN Program will deliver a rich and compelling physics opportunity, including the ability to resolve a class of experimental anomalies in neutrino physics and to perform the most sensitive search to date for sterile neutrinos at the eV mass-scale through both appearance and disappearance oscillation channels. Using data sets of 6. Read More

At the 17th J-PARC PAC, which was held on September 2013, we proposed the sterile neutrino search at J-PARC MLF. After reviewing the proposal, PAC recommended to have a background measurement at the detector's candidate site location in their report to investigate whether the background rates can be manageable for the real experiment or not. Therefore, we have performed the background measurements (MLF; 2013BU1301 test experiment) during the summer of 2014, also following the 18th J-PARC PAC recommendations, and the measurements results are described here. Read More

We calculate the $B \to\pi\ell\nu$ and $B_s \to K \ell\nu$ form factors in dynamical lattice QCD. We use the (2+1)-flavor RBC-UKQCD gauge-field ensembles generated with the domain-wall fermion and Iwasaki gauge actions. For the $b$ quarks we use the anisotropic clover action with a relativistic heavy-quark interpretation. Read More

We present the status of our updated D- and B-meson decay-constant analysis, based on the MILC $N_f = 2+1$ asqtad gauge ensembles. Heavy quarks are incorporated using the Wilson clover action with the Fermilab interpretation. This analysis includes ensembles at five lattice spacings from a $\approx$ 0. Read More

We report on the status of our calculation of the hadronic matrix elements for neutral $B$-meson mixing with asqtad sea and valence light quarks and using the Wilson clover action with the Fermilab interpretation for the $b$ quark. We calculate the matrix elements of all five local operators that contribute to neutral $B$-meson mixing both in and beyond the Standard Model. We use MILC ensembles with $N_f=2+1$ dynamical flavors at four different lattice spacings in the range $a \approx 0. Read More

We present an update on our calculation of the short-distance $D^0$-meson mixing hadronic matrix elements. The analysis is performed on the MILC collaboration's $N_f=2+1$ asqtad configurations. We use asqtad light valence quarks and the Sheikoleslami-Wohlert action with the Fermilab interpretation for the valence charm quark. Read More

We compute the $B\to\pi\ell\nu$ semileptonic form factors and update the determination of the CKM matrix element $|V_{ub}|$. We use the MILC asqtad ensembles with $N_f=2+1$ sea quarks at four different lattice spacings in the range $a \approx 0.045$~fm to $0. Read More

We compute the leptonic decay constants $f_{D^+}$, $f_{D_s}$, and $f_{K^+}$, and the quark-mass ratios $m_c/m_s$ and $m_s/m_l$ in unquenched lattice QCD. We use the MILC highly improved staggered quark (HISQ) ensembles with four dynamical quark flavors. Our primary results are $f_{D^+} = 212. Read More

We report on a preliminary scale determination with gradient-flow techniques on the $N_f = 2 + 1 + 1$ HISQ ensembles generated by the MILC collaboration. The ensembles include four lattice spacings, ranging from 0.15 to 0. Read More

We report on the MILC Collaboration calculation of electromagnetic effects on light pseudoscalar mesons. The simulations employ asqtad staggered dynamical quarks in QCD plus quenched photons, with lattice spacings varying from 0.12 to 0. Read More

2014Jul
Affiliations: 1Fermilab Lattice and MILC Collaborations, 2Fermilab Lattice and MILC Collaborations, 3Fermilab Lattice and MILC Collaborations, 4Fermilab Lattice and MILC Collaborations, 5Fermilab Lattice and MILC Collaborations, 6Fermilab Lattice and MILC Collaborations, 7Fermilab Lattice and MILC Collaborations, 8Fermilab Lattice and MILC Collaborations, 9Fermilab Lattice and MILC Collaborations, 10Fermilab Lattice and MILC Collaborations, 11Fermilab Lattice and MILC Collaborations, 12Fermilab Lattice and MILC Collaborations, 13Fermilab Lattice and MILC Collaborations, 14Fermilab Lattice and MILC Collaborations, 15Fermilab Lattice and MILC Collaborations, 16Fermilab Lattice and MILC Collaborations, 17Fermilab Lattice and MILC Collaborations, 18Fermilab Lattice and MILC Collaborations, 19Fermilab Lattice and MILC Collaborations, 20Fermilab Lattice and MILC Collaborations, 21Fermilab Lattice and MILC Collaborations, 22Fermilab Lattice and MILC Collaborations, 23Fermilab Lattice and MILC Collaborations

We compute the leptonic decay constants $f_{D^+}$, $f_{D_s}$, and $f_{K^+}$, and the quark-mass ratios $m_c/m_s$ and $m_s/m_l$ in unquenched lattice QCD using the experimentally determined value of $f_{\pi^+}$ for normalization. We use the MILC highly improved staggered quark (HISQ) ensembles with four dynamical quark flavors---up, down, strange, and charm---and with both physical and unphysical values of the light sea-quark masses. The use of physical pions removes the need for a chiral extrapolation, thereby eliminating a significant source of uncertainty in previous calculations. Read More

2014Jul
Affiliations: 1MiniBooNE Collaboration, 2MiniBooNE Collaboration, 3MiniBooNE Collaboration, 4MiniBooNE Collaboration, 5MiniBooNE Collaboration, 6MiniBooNE Collaboration, 7MiniBooNE Collaboration, 8MiniBooNE Collaboration, 9MiniBooNE Collaboration, 10MiniBooNE Collaboration, 11MiniBooNE Collaboration, 12MiniBooNE Collaboration, 13MiniBooNE Collaboration, 14MiniBooNE Collaboration, 15MiniBooNE Collaboration, 16MiniBooNE Collaboration, 17MiniBooNE Collaboration, 18MiniBooNE Collaboration, 19MiniBooNE Collaboration, 20MiniBooNE Collaboration, 21MiniBooNE Collaboration, 22MiniBooNE Collaboration, 23MiniBooNE Collaboration, 24MiniBooNE Collaboration, 25MiniBooNE Collaboration, 26MiniBooNE Collaboration, 27MiniBooNE Collaboration, 28MiniBooNE Collaboration, 29MiniBooNE Collaboration, 30MiniBooNE Collaboration, 31MiniBooNE Collaboration, 32MiniBooNE Collaboration, 33MiniBooNE Collaboration, 34MiniBooNE Collaboration, 35MiniBooNE Collaboration, 36MiniBooNE Collaboration, 37MiniBooNE Collaboration, 38MiniBooNE Collaboration, 39MiniBooNE Collaboration, 40MiniBooNE Collaboration, 41MiniBooNE Collaboration, 42MiniBooNE Collaboration, 43MiniBooNE Collaboration, 44MiniBooNE Collaboration

This paper explores the use of $L/E$ oscillation probability distributions to compare experimental measurements and to evaluate oscillation models. In this case, $L$ is the distance of neutrino travel and $E$ is a measure of the interacting neutrino's energy. While comparisons using allowed and excluded regions for oscillation model parameters are likely the only rigorous method for these comparisons, the $L/E$ distributions are shown to give qualitative information on the agreement of an experiment's data with a simple two-neutrino oscillation model. Read More

2014Jun
Authors: A. J. Bevan, B. Golob, Th. Mannel, S. Prell, B. D. Yabsley, K. Abe, H. Aihara, F. Anulli, N. Arnaud, T. Aushev, M. Beneke, J. Beringer, F. Bianchi, I. I. Bigi, M. Bona, N. Brambilla, J. B rodzicka, P. Chang, M. J. Charles, C. H. Cheng, H. -Y. Cheng, R. Chistov, P. Colangelo, J. P. Coleman, A. Drutskoy, V. P. Druzhinin, S. Eidelman, G. Eigen, A. M. Eisner, R. Faccini, K. T . Flood, P. Gambino, A. Gaz, W. Gradl, H. Hayashii, T. Higuchi, W. D. Hulsbergen, T. Hurth, T. Iijima, R. Itoh, P. D. Jackson, R. Kass, Yu. G. Kolomensky, E. Kou, P. Križan, A. Kronfeld, S. Kumano, Y. J. Kwon, T. E. Latham, D. W. G. S. Leith, V. Lüth, F. Martinez-Vidal, B. T. Meadows, R. Mussa, M. Nakao, S. Nishida, J. Ocariz, S. L. Olsen, P. Pakhlov, G. Pakhlova, A. Palano, A. Pich, S. Playfer, A. Poluektov, F. C. Porter, S. H. Robertson, J. M. Roney, A. Roodman, Y. Sakai, C. Schwanda, A. J. Schwartz, R. Seidl, S. J. Sekula, M. Steinhauser, K. Sumisawa, E. S. Swanson, F. Tackmann, K. Trabelsi, S. Uehara, S. Uno, R. van der Water, G. Vasseur, W. Verkerke, R. Waldi, M. Z. Wang, F. F. Wilson, J. Zupan, A. Zupanc, I. Adachi, J. Albert, Sw. Banerjee, M. Bellis, E. Ben-Haim, P. Biassoni, R. N. Cahn, C. Cartaro, J. Chauveau, C. Chen, C. C. Chiang, R. Cowan, J. Dalseno, M. Davier, C. Davies, J. C. Dingfelder, B. Eche nard, D. Epifanov, B. G. Fulsom, A. M. Gabareen, J. W. Gary, R. Godang, M. T. Graham, A. Hafner, B. Hamilton, T. Hartmann, K. Hayasaka, C. Hearty, Y. Iwasaki, A. Khodjamirian, A. Kusaka, A. Kuzmin, G. D. Lafferty, A. Lazzaro, J. Li, D. Lindemann, O. Long, A. Lusiani, G. Marchiori, M. Martinelli, K. Miyabayashi, R. Mizuk, G. B. Mohanty, D. R. Muller, H. Nakazawa, P. Ongmongkolkul, S. Pacetti, F. Palombo, T. K. Pedlar, L. E. Piilonen, A. Pilloni, V. Poireau, K. Prothmann, T. Pulliam, M. Rama, B. N. Ratcliff, P. Roudeau, S. Schrenk, T. Schroeder, K. R. Schubert, C. P. Shen, B. Shwartz, A. Soffer, E. P. Solodov, A. Somov, M. Starič, S. Stracka, A. V. Telnov, K. Yu. Todyshev, T. Tsuboyama, T. Uglov, A. Vinokurova, J. J. Walsh, Y. Watanabe, E. Won, G. Wormser, D. H. Wright, S. Ye, C. C. Zhang, S. Abachi, A. Abashian, K. Abe, K. Abe, N. Abe, R. Abe, T. Abe, T. Abe, G. S. Abrams, I. Adam, K. Adamczyk, A. Adametz, T. Adye, A. Agarwal, H. Ahmed, M. Ahmed, S. Ahmed, B. S. Ahn, H. S. Ahn, I. J. R. Aitchison, K. Akai, S. Akar, M. Akatsu, M. Akemoto, R. Akhmetshin, R. Akre, M. S. Alam, J. N. Albert, R. Aleksan, J. P. Alexander, G. Alimonti, M. T. Allen, J. Allison, T. Allmendinger, J. R. G. Alsmiller, D. Altenburg, K. E. Alwyn, Q. An, J. Anderson, R. Andreassen, D. Andreotti, M. Andreotti, J. C. Andress, C. Angelini, D. Anipko, A. Anjomshoaa, P. L. Anthony, E. A. Antillon, E. Antonioli, K. Aoki, J. F. Arguin, K. Arinstein, K. Arisaka, K. Asai, M. Asai, Y. Asano, D. J. Asgeirsson, D. M. Asner, T. Aso, M. L. Aspinwall, D. Aston, H. Atmacan, B. Aubert, V. Aulchenko, R. Ayad, T. Azemoon, T. Aziz, V. Azzolini, D. E. Azzopardi, M. A. Baak, J. J. Back, S. Bagnasco, S. 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Saeed, F. Safai Tehrani, H. Sagawa, H. Sahoo, S. Sahu, M. Saigo, T. Saito, S. Saitoh, K. Sakai, H. Sakamoto, H. Sakaue, M. Saleem, A. A. Salnikov, E. Salvati, F. Salvatore, A. Samuel, D. A. Sanders, P. Sanders, S. Sandilya, F. Sandrelli, W. Sands, W. R. Sands, M. Sanpei, D. Santel, L. Santelj, V. Santoro, A. Santroni, T. Sanuki, T. R. Sarangi, S. Saremi, A. Sarti, T. Sasaki, N. Sasao, M. Satapathy, Nobuhiko Sato, Noriaki Sato, Y. Sato, N. Satoyama, A. Satpathy, V. Savinov, N. Savvas, O. H. Saxton, K. Sayeed, S. F. Schaffner, T. Schalk, S. Schenk, J. R. Schieck, T. Schietinger, C. J. Schilling, R. H. Schindler, S. Schmid, R. E. Schmitz, H. Schmuecker, O. Schneider, G. Schnell, P. Schönmeier, K. C. Schofield, G. Schott, H. Schröder, M. Schram, J. Schubert, J. Schümann, J. Schultz, B. A. Schumm, M. H. Schune, U. Schwanke, H. Schwarz, J. Schwiening, R. Schwierz, R. F. Schwitters, C. Sciacca, G. Sciolla, I. J. Scott, J. Seeman, A. Seiden, R. Seitz, T. Seki, A. I. Sekiya, S. Semenov, D. 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Zheng, Z. P. Zheng, V. Zhilich, P. Zhou, R. Y. Zhu, Y. S. Zhu, Z. M. Zhu, V. Zhulanov, T. Ziegler, V. Ziegler, G. Zioulas, M. Zisman, M. Zito, D. Zürcher, N. Zwahlen, O. Zyukova, T. Živko, D. Žontar

This work is on the Physics of the B Factories. Part A of this book contains a brief description of the SLAC and KEK B Factories as well as their detectors, BaBar and Belle, and data taking related issues. Part B discusses tools and methods used by the experiments in order to obtain results. Read More

We calculate the B-meson decay constants f_B, f_Bs, and their ratio in unquenched lattice QCD using domain-wall light quarks and relativistic b-quarks. We use gauge-field ensembles generated by the RBC and UKQCD collaborations using the domain-wall fermion action and Iwasaki gauge action with three flavors of light dynamical quarks. We analyze data at two lattice spacings of a ~ 0. Read More

We present a study of the $D$ and $B$ leptonic decay constants on the MILC $N_f=2+1$ asqtad gauge ensembles using asqtad-improved staggered light quarks and clover heavy quarks in the Fermilab interpretation. Our previous analysis \cite{Bazavov:2011aa} computed the decay constants at lattice spacings $a \approx 0.14, 0. Read More

We compute the zero-recoil form factor for the semileptonic decay $\bar{B}^0\to D^{*+}\ell^-\bar{\nu}$ (and modes related by isospin and charge conjugation) using lattice QCD with three flavors of sea quarks. We use an improved staggered action for the light valence and sea quarks (the MILC \asqtad\ configurations), and the Fermilab action for the heavy quarks. Our calculations incorporate higher statistics, finer lattice spacings, and lighter quark masses than our 2008 work. Read More

These reports present the results of the 2013 Community Summer Study of the APS Division of Particles and Fields ("Snowmass 2013") on the future program of particle physics in the U.S. Chapter 9, on Computing, discusses the computing challenges for future experiments in the Energy, Intensity, and Cosmic Frontiers, for accelerator science, and for particle theory, as well as structural issues in supporting the intense uses of computing required in all areas of particle physics. Read More

2013Dec
Affiliations: 1MILC collaboration, 2MILC collaboration, 3MILC collaboration, 4MILC collaboration, 5MILC collaboration, 6MILC collaboration, 7MILC collaboration, 8MILC collaboration, 9MILC collaboration, 10MILC collaboration, 11MILC collaboration, 12MILC collaboration, 13MILC collaboration, 14MILC collaboration

We present recent results on the QCD equation of state with 2+1+1 flavors of highly improved staggered quarks (HISQ). We focus on three sets of ensembles with temporal extent 6, 8 and 10, that reach up to temperatures of 967, 725 and 580 MeV, respectively. The strange and charm quark masses are tuned to the physical values and the light quarks mass is set to one fifth of the strange. Read More

We calculate the form factors for the semileptonic decays $B_s\to K\ell\nu$ and $B\to K\ell\ell$ with lattice QCD. We work at several lattice spacings and a range of light quark masses, using the MILC 2+1-flavor asqtad ensembles. We use the Fermilab method for the $b$ quark. Read More

We calculate the kaon semileptonic form factor $f_+(0)$ from lattice QCD, working, for the first time, at the physical light-quark masses. We use gauge configurations generated by the MILC collaboration with $N_f=2+1+1$ flavors of sea quarks, which incorporate the effects of dynamical charm quarks as well as those of up, down, and strange. We employ data at three lattice spacings to extrapolate to the continuum limit. Read More

2013Nov

We have analyzed the semileptonic decays $B\rightarrow D\ell\nu$ and $B\rightarrow D^*\ell\nu$ on the full suite of MILC (2+1)-flavor asqtad ensembles with lattice spacings as small as 0.045 fm and light-to-strange-quark mass ratios as low as 1/20. We use the Fermilab interpretation of the clover action for heavy valence quarks and the asqtad action for light valence quarks. Read More