M. Olson - Fermilab

M. Olson
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M. Olson
United States

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Pub Categories

Nuclear Experiment (6)
Physics - Accelerator Physics (3)
High Energy Physics - Experiment (2)
Physics - Instrumentation and Detectors (2)
Nuclear Theory (1)
Statistics - Methodology (1)
Statistics - Machine Learning (1)
Computer Science - Learning (1)

Publications Authored By M. Olson

The charge and magnetic form factors, FC and FM, of 3He have been extracted in the kinematic range 25 fm-2 < Q2 < 61 fm-2 from elastic electron scattering by detecting 3He recoil nuclei and electrons in coincidence with the High Resolution Spectrometers of the Hall A Facility at Jefferson Lab. The measurements are indicative of a second diffraction minimum for the magnetic form factor, which was predicted in the Q2 range of this experiment, and of a continuing diffractive structure for the charge form factor. The data are in qualitative agreement with theoretical calculations based on realistic interactions and accurate methods to solve the three-body nuclear problem. Read More

There is a large literature explaining why AdaBoost is a successful classifier. The literature on AdaBoost focuses on classifier margins and boosting's interpretation as the optimization of an exponential likelihood function. These existing explanations, however, have been pointed out to be incomplete. Read More

Authors: L. Bartoszek, E. Barnes, J. P. Miller, J. Mott, A. Palladino, J. Quirk, B. L. Roberts, J. Crnkovic, V. Polychronakos, V. Tishchenko, P. Yamin, C. -h. Cheng, B. Echenard, K. Flood, D. G. Hitlin, J. H. Kim, T. S. Miyashita, F. C. Porter, M. Röhrken, J. Trevor, R. -Y. Zhu, E. Heckmaier, T. I. Kang, G. Lim, W. Molzon, Z. You, A. M. Artikov, J. A. Budagov, Yu. I. Davydov, V. V. Glagolev, A. V. Simonenko, Z. U. Usubov, S. H. Oh, C. Wang, G. Ambrosio, N. Andreev, D. Arnold, M. Ball, R. H. Bernstein, A. Bianchi, K. Biery, R. Bossert, M. Bowden, J. Brandt, G. Brown, H. Brown, M. Buehler, M. Campbell, S. Cheban, M. Chen, J. Coghill, R. Coleman, C. Crowley, A. Deshpande, G. Deuerling, J. Dey, N. Dhanaraj, M. Dinnon, S. Dixon, B. Drendel, N. Eddy, R. Evans, D. Evbota, J. Fagan, S. Feher, B. Fellenz, H. Friedsam, G. Gallo, A. Gaponenko, M. Gardner, S. Gaugel, K. Genser, G. Ginther, H. Glass, D. Glenzinski, D. Hahn, S. Hansen, B. Hartsell, S. Hays, J. A. Hocker, E. Huedem, D. Huffman, A. Ibrahim, C. Johnstone, V. Kashikhin, V. V. Kashikhin, P. Kasper, T. Kiper, D. Knapp, K. Knoepfel, L. Kokoska, M. Kozlovsky, G. Krafczyk, M. Kramp, S. Krave, K. Krempetz, R. K. Kutschke, R. Kwarciany, T. Lackowski, M. J. Lamm, M. Larwill, F. Leavell, D. Leeb, A. Leveling, D. Lincoln, V. Logashenko, V. Lombardo, M. L. Lopes, A. Makulski, A. Martinez, D. McArthur, F. McConologue, L. Michelotti, N. Mokhov, J. Morgan, A. Mukherjee, P. Murat, V. Nagaslaev, D. V. Neuffer, T. Nicol, J. Niehoff, J. Nogiec, M. Olson, D. Orris, R. Ostojic, T. Page, C. Park, T. Peterson, R. Pilipenko, A. Pla-Dalmau, V. Poloubotko, M. Popovic, E. Prebys, P. Prieto, V. Pronskikh, D. Pushka, R. Rabehl, R. E. Ray, R. Rechenmacher, R. Rivera, W. Robotham, P. Rubinov, V. L. Rusu, V. Scarpine, W. Schappert, D. Schoo, A. Stefanik, D. Still, Z. Tang, N. Tanovic, M. Tartaglia, G. Tassotto, D. Tinsley, R. S. Tschirhart, G. Vogel, R. Wagner, R. Wands, M. Wang, S. Werkema, H. B. White Jr., J. Whitmore, R. Wielgos, R. Woods, C. Worel, R. Zifko, P. Ciambrone, F. Colao, M. Cordelli, G. Corradi, E. Dane, S. Giovannella, F. Happacher, A. Luca, S. Miscetti, B. Ponzio, G. Pileggi, A. Saputi, I. Sarra, R. S. Soleti, V. Stomaci, M. Martini, P. Fabbricatore, S. Farinon, R. Musenich, D. Alexander, A. Daniel, A. Empl, E. V. Hungerford, K. Lau, G. D. Gollin, C. Huang, D. Roderick, B. Trundy, D. Na. Brown, D. Ding, Yu. G. Kolomensky, M. J. Lee, M. Cascella, F. Grancagnolo, F. Ignatov, A. Innocente, A. L'Erario, A. Miccoli, A. Maffezzoli, P. Mazzotta, G. Onorato, G. M. Piacentino, S. Rella, F. Rossetti, M. Spedicato, G. Tassielli, A. Taurino, G. Zavarise, R. Hooper, D. No. Brown, R. Djilkibaev, V. Matushko, C. Ankenbrandt, S. Boi, A. Dychkant, D. Hedin, Z. Hodge, V. Khalatian, R. Majewski, L. Martin, U. Okafor, N. Pohlman, R. S. Riddel, A. Shellito, A. L. de Gouvea, F. Cervelli, R. Carosi, S. Di Falco, S. Donati, T. Lomtadze, G. Pezzullo, L. Ristori, F. Spinella, M. Jones, M. D. Corcoran, J. Orduna, D. Rivera, R. Bennett, O. Caretta, T. Davenne, C. Densham, P. Loveridge, J. Odell, R. Bomgardner, E. C. Dukes, R. Ehrlich, M. Frank, S. Goadhouse, R. Group, E. Ho, H. Ma, Y. Oksuzian, J. Purvis, Y. Wu, D. W. Hertzog, P. Kammel, K. R. Lynch, J. L. Popp

The Mu2e experiment at Fermilab will search for charged lepton flavor violation via the coherent conversion process mu- N --> e- N with a sensitivity approximately four orders of magnitude better than the current world's best limits for this process. The experiment's sensitivity offers discovery potential over a wide array of new physics models and probes mass scales well beyond the reach of the LHC. We describe herein the preliminary design of the proposed Mu2e experiment. Read More

The charge form factor of $^$4He has been extracted in the range 29 fm$^{-2}$ $\le Q^2 \le 77$ fm$^{-2}$ from elastic electron scattering, detecting $^4$He nuclei and electrons in coincidence with the High Resolution Spectrometers of the Hall A Facility of Jefferson Lab. The results are in qualitative agreement with realistic meson-nucleon theoretical calculations. The data have uncovered a second diffraction minimum, which was predicted in the $Q^2$ range of this experiment, and rule out conclusively long-standing predictions of dimensional scaling of high-energy amplitudes using quark counting. Read More

Affiliations: 1Fermilab, 2Fermilab, 3Fermilab, 4Fermilab, 5Fermilab, 6Fermilab, 7Fermilab, 8Fermilab, 9Fermilab, 10Fermilab, 11Fermilab, 12Fermilab, 13Fermilab, 14Fermilab, 15Fermilab, 16Fermilab, 17Fermilab, 18Fermilab, 19Fermilab, 20Fermilab, 21Fermilab, 22Fermilab, 23Fermilab, 24Fermilab, 25Fermilab, 26Fermilab, 27Fermilab

This paper describes the development of a digital-based Beam Position System which was designed, developed, and adapted for the Tevatron during Collider Run II. Read More

A VME-based data acquisition system for beam-loss monitors has been developed and is in use in the Tevatron and Main Injector accelerators at the Fermilab complex. The need for enhanced beam-loss protection when the Tevatron is operating in collider-mode was the main driving force for the new design. Prior to the implementation of the present system, the beam-loss monitor system was disabled during collider operation and protection of the Tevatron magnets relied on the quench protection system. Read More

As demonstrated during the recent financial crisis, regulators require additional analytical tools to assess systemic risk in the financial sector. This paper describes one such tool; namely a novel market modeling and analysis capability. Our model builds upon two leading market models: one which emphasizes market micro-structure and another which emphasizes an ecology of trading strategies. Read More

We present an updated extraction of the proton electromagnetic form factor ratio, mu_p G_E/G_M, at low Q^2. The form factors are sensitive to the spatial distribution of the proton, and precise measurements can be used to constrain models of the proton. An improved selection of the elastic events and reduced background contributions yielded a small systematic reduction in the ratio mu_p G_E/G_M compared to the original analysis. Read More

High precision measurements of induced and transferred recoil proton polarization in d(polarized gamma, polarized p})n have been performed for photon energies of 277--357 MeV and theta_cm = 20 degrees -- 120 degrees. The measurements were motivated by a longstanding discrepancy between meson-baryon model calculations and data at higher energies. At the low energies of this experiment, theory continues to fail to reproduce the data, indicating that either something is missing in the calculations and/or there is a problem with the accuracy of the nucleon-nucleon potential being used. Read More

The beam-beam effects have been the dominating sources of beam loss and lifetime limitations in the Tevatron proton-antiproton collider [1]. Electron lenses were originally proposed for compensation of electromagnetic long-range and head-on beam-beam interactions of proton and antiproton beams [2]. Results of successful employment of two electron lenses built and installed in the Tevatron are reported in [3,4,5]. Read More

The paper describes the design and performance of flux integrating Cherenkov scanners with air-core reflecting light guides used in a high-energy, high-flux electron scattering experiment at the Stanford Linear Accelerator Center. The scanners were highly radiation resistant and provided a good signal to background ratio leading to very good spatial resolution of the scattered electron flux profile scans. Read More