Author: "Aguilar-Arevalo, A." / Topic: particle physics - Searchworks@Jio Institute Digital Library Search Results

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55 results on '"Aguilar-Arevalo, A."'

1. Updated MiniBooNE neutrino oscillation results with increased data and new background studies

Author: MiniBooNE Collaboration, Aguilar-Arevalo, A. A., Brown, B. C., Conrad, J. M., Dharmapalan, R., Diaz, A., Djurcic, Z., Finley, D. A., Ford, R., Garvey, G. T., Gollapinni, S., Hourlier, A., Huang, E. C., Kamp, N. W., Karagiorgi, G., Katori, T., Kobilarcik, T., Lin, K., Louis, W. C., Mariani, C., Marsh, W., Mills, G. B., Mirabal-Martinez, J., Moore, C. D., Nelson, R. H., Nowak, J., Parmaksiz, I., Pavlovic, Z., Ray, H., Roe, B. P., Russell, A. D., Schneider, A., Shaevitz, M. H., Siegel, H., Spitz, J., Stancu, I., Tayloe, R., Thornton, R. T., Tzanov, M., Van de Water, R. G., White, D. H., and Zimmerman, E. D.
Subjects: Physics, Particle physics, Photon, 010308 nuclear & particles physics, Detector, FOS: Physical sciences, 01 natural sciences, High Energy Physics - Experiment, MiniBooNE, High Energy Physics - Phenomenology, High Energy Physics - Experiment (hep-ex), High Energy Physics - Phenomenology (hep-ph), 0103 physical sciences, High Energy Physics::Experiment, Fermilab, Neutrino, Nuclear Experiment (nucl-ex), 010306 general physics, Neutrino oscillation, Event (particle physics), Nuclear Experiment, Lepton
Abstract: The MiniBooNE experiment at Fermilab reports a total excess of $638.0 \pm 132.8$ electron-like events ($4.8 \sigma$) from a data sample corresponding to $18.75 \times 10^{20}$ protons-on-target in neutrino mode, which is a 46\% increase in the data sample with respect to previously published results, and $11.27 \times 10^{20}$ protons-on-target in antineutrino mode. The additional statistics allow several studies to address questions on the source of the excess. First, we provide two-dimensional plots in visible energy and cosine of the angle of the outgoing lepton, which can provide valuable input to models for the event excess. Second, we test whether the excess may arise from photons that enter the detector from external events or photons exiting the detector from $\pi^0$ decays in two model independent ways. Beam timing information shows that almost all of the excess is in time with neutrinos that interact in the detector. The radius distribution shows that the excess is distributed throughout the volume, while tighter cuts on the fiducal volume increase the significance of the excess. We conclude that models of the event excess based on entering and exiting photons are disfavored., Comment: 28 pages, 26 figures
Published: 2021

2. Search for heavy neutrinos in $\pi ^{ + } \to \mu ^{ + }\nu $ decay and status of lepton universality test in the PIENU experiment

Author: T. Numao, Douglas Bryman, Chloé Malbrunot, P. Gumplinger, S. Cuen-Rochin, Dave Britton, Ahmed Hussein, A. Sher, D. Protopopescu, J. R. Comfort, L. S. Littenberg, T. Sullivan, Y. Igarashi, R. E. Mischke, Leonid Kurchaninov, Song Chen, S. Ito, S. H. Kettell, D. Vom Bruch, M. Blecher, Alexis A. Aguilar-Arevalo, Luca Doria, D. Vavilov, Masaharu Aoki, Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE (UMR_7585)), and Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP)
Subjects: Physics, Particle physics, Muon, +muon%2B+neutrino%22">pi+ --> muon+ neutrino, pi: decay, neutrino: heavy: search for, Universality (philosophy), Pontecorvo–Maki–Nakagawa–Sakata matrix, kinetic, energy spectrum, Kinetic energy, Pion, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], High Energy Physics::Experiment, Neutrino, neutrino: mixing, Order of magnitude, Particle Physics - Experiment, Lepton, experimental results, lepton: universality
Abstract: International audience; In the present work of the PIENU experiment, heavy neutrinos were sought in pion decays $\pi ^{ + } \to \mu ^{ + }\nu $. No evidence for extra peak was found in the muon kinetic energy spectrum and 90% confidence level upper limits were set on the neutrino mixing matrix $|U_{\mu i}|^{2}$ in the mass range of 15.7 to 33.8 MeV/c^2, improving an order of magnitude over previous experiments. Current status of lepton universality test is also reported.
Published: 2021

3. Search for heavy neutrinos in π → μν decay

Author: T. Numao, Dave Britton, M. Blecher, A. Sher, Y. Igarashi, Douglas Bryman, P. Gumplinger, J. R. Comfort, S. Cuen-Rochin, Alexis A. Aguilar-Arevalo, Leonid Kurchaninov, Song Chen, L. S. Littenberg, Luca Doria, D. Vavilov, R. E. Mischke, Masaharu Aoki, D. Vom Bruch, S. Ito, C. Malbrunot, Ahmed Hussein, S. H. Kettell, D. Protopopescu, and T. Sullivan
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, Muon, 010308 nuclear & particles physics, Physics::Instrumentation and Detectors, Astrophysics::High Energy Astrophysical Phenomena, High Energy Physics::Phenomenology, Pontecorvo–Maki–Nakagawa–Sakata matrix, 01 natural sciences, lcsh:QC1-999, Pion, 0103 physical sciences, Energy spectrum, High Energy Physics::Experiment, Neutrino, Heavy neutrino, 010306 general physics, Nuclear Experiment, Order of magnitude, lcsh:Physics
Abstract: In the present work of the PIENU experiment, heavy neutrinos were sought in pion decays pi(+) -> mu(+)nu at rest by examining the observed muon energy spectrum for extra peaks in addition to the expected peak for a light neutrino. No evidence for heavy neutrinos was observed. Upper limits were set on the neutrino mixing matrix vertical bar U-mu i vertical bar(2) in the neutrino mass region of 15.7-33.8 MeV/c(2), improving on previous results by an order of magnitude. (C) 2019 The Authors. Published by Elsevier B.V.
Published: 2019

4. Constraints on Light Dark Matter Particles Interacting with Electrons from DAMIC at SNOLAB

Author: P. Mitra, A. Matalon, Y. Guardincerri, I. Lawson, S.J. Lee, K. Ramanathan, Alexis A. Aguilar-Arevalo, Y. Sarkis, Javier Tiffenberg, A. Piers, Todd W. Hossbach, A. Letessier-Selvon, R. Gaior, R. C. Thomas, A. E. Chavarria, V. B. B. Mello, B. Kilminster, E. Darragh-Ford, B. A. Cervantes Vergara, Paolo Privitera, J. Da Rocha, Juan Estrada, D. Torres Machado, M. Settimo, J. R. T. de Mello Neto, D. Amidei, Jorge Molina, A. L. Virto, R. Vilar, Gustavo Cancelo, Juan Carlos D'Olivo, Radomir Smida, S Paul, D. Baxter, Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE (UMR_7585)), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de physique subatomique et des technologies associées (SUBATECH), Université de Nantes - Faculté des Sciences et des Techniques, Université de Nantes (UN)-Université de Nantes (UN)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-IMT Atlantique Bretagne-Pays de la Loire (IMT Atlantique), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT), DAMIC, Université de Nantes (UN)-Université de Nantes (UN)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-IMT Atlantique Bretagne-Pays de la Loire (IMT Atlantique), University of Chicago, Kavli Institute for Particle Astrophysics and Cosmology, National Science Foundation (US), Consejo Nacional de Ciencia y Tecnología (México), Universidad Nacional Autónoma de México, Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP), and Université de Nantes - UFR des Sciences et des Techniques (UN UFR ST)
Subjects: electron, Particle physics, Cosmology and Nongalactic Astrophysics (astro-ph.CO), Physics - Instrumentation and Detectors, dark matter: interaction, Dark matter, FOS: Physical sciences, General Physics and Astronomy, Electron, dark matter: direct detection, Parameter space, charge distribution, 01 natural sciences, High Energy Physics - Experiment, High Energy Physics - Experiment (hep-ex), High Energy Physics - Phenomenology (hep-ph), S030DE5, pixel, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], 010306 general physics, Light dark matter, Physics, photon: hidden sector, Range (particle radiation), dark matter: mass, Particle interaction, Detector, S029HPH, Charge density, Instrumentation and Detectors (physics.ins-det), particle: interaction, High Energy Physics - Phenomenology, [PHYS.HPHE]Physics [physics]/High Energy Physics - Phenomenology [hep-ph], Elementary Particles and Fields, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract: DAMIC Collaboration: et al., We report direct-detection constraints on light dark matter particles interacting with electrons. The results are based on a method that exploits the extremely low levels of leakage current of the DAMIC detector at SNOLAB of 2-6×10-22 A cm-2. We evaluate the charge distribution of pixels that collect, We acknowledge financial support from the following agencies and organizations: Kavli Institute for Cosmological Physics at The University of Chicago through an endowment from the Kavli Foundation; National Science Foundation through Grant No. NSF PHY-1806974; Mexico’s Consejo Nacional de Ciencia y Tecnología (Grant No. 240666) and Dirección General de Asuntos del Personal Academico—Universidad Nacional Autónoma de México (Programa de Apoyo a Proyectos de Investigación e Innovación Tecnológica Grant No. IN108917).
Published: 2019

5. Significant Excess of ElectronLike Events in the MiniBooNE Short-Baseline Neutrino Experiment

Author: W. Marsh, Zelimir Djurcic, B. Osmanov, Jocelyn Monroe, Teppei Katori, B. C. Brown, R. Dharmapalan, M. H. Shaevitz, G. Karagiorgi, L. Bugel, J. Grange, P. Nienaber, I. Stancu, M. Tzanov, F. G. Garcia, C. Mariani, G. B. Mills, R. L. Cooper, R. Ford, J. Mousseau, G. Cheng, J. Spitz, D. A. Wickremasinghe, R. Tayloe, Byron P. Roe, T. Kobilarcik, W. C. Louis, Alejandro Diaz, W. Huelsnitz, G. T. Garvey, D. Perevalov, E. D. Zimmerman, C. M. Ignarra, D. A. Finley, R. A. Johnson, Janet Conrad, Z. Pavlovic, R. T. Thornton, E. C. Huang, C. D. Moore, J. Mirabal, D. H. White, A. D. Russell, H. Ray, R. G. Van de Water, Alexis A. Aguilar-Arevalo, J. A. Nowak, Massachusetts Institute of Technology. Department of Nuclear Science and Engineering, Massachusetts Institute of Technology. Department of Physics, Massachusetts Institute of Technology. Laboratory for Nuclear Science, Bugel, Leonard G., Conrad, Janet Marie, Diaz, Alejandro, Ignarra, Christina, and Katori, Teppei
Subjects: Physics, Liquid Scintillator Neutrino Detector, Particle physics, 010308 nuclear & particles physics, Oscillation, High Energy Physics::Phenomenology, General Physics and Astronomy, FOS: Physical sciences, 01 natural sciences, High Energy Physics - Experiment, MiniBooNE, High Energy Physics - Phenomenology, High Energy Physics - Experiment (hep-ex), High Energy Physics - Phenomenology (hep-ph), Neutrino detector, 0103 physical sciences, High Energy Physics::Experiment, Fermilab, Neutrino, 010306 general physics, Energy (signal processing), Charged current
Abstract: The MiniBooNE experiment at Fermilab reports results from an analysis of $\nu_e$ appearance data from $12.84 \times 10^{20}$ protons on target in neutrino mode, an increase of approximately a factor of two over previously reported results. A $\nu_e$ charged-current quasielastic event excess of $381.2 \pm 85.2$ events ($4.5 \sigma$) is observed in the energy range $200, Comment: Improved some of the figures and improved the correlation between neutrino and antineutrino data
Published: 2018
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6. Precision Measurement of the $\pi$$^+$$\rightarrow$$e^+$$\nu$$_e$ Branching Ratio in the PIENU Experiment

Author: A. Husseina, D. Protopopescu, D. Vavilov, Alexis A. Aguilar-Arevalo, Dave Britton, J. R. Comfort, L. Doria, Song Chen, Y. Igarashi, D. Vom Bruch, T. Sullivan, Shintaro Ito, A. Sher, T. Numao, Leonid Kurchaninov, Chloé Malbrunot, Masaharu Aoki, S. H. Kettell, L. S. Littenberg, Douglas Bryman, S. Cuen-Rochin, M. Blecher, P. Gumplinger, and R. E. Mischke
Subjects: Physics, Particle physics, Pion, Branching fraction, Pi, High Energy Physics::Experiment
Abstract: The PIENU experiment at TRIUMF aims to measure the branching ratio of the pion decay modes $R^{\pi}=[{\pi}^+{\rightarrow}e^+{\nu}_e({\gamma})]/[{\pi}^+{\rightarrow}{\mu}^+{\nu}_{\mu}({\gamma})]$ with precision of $
Published: 2017

7. Dark Matter Search in a Proton Beam Dump with MiniBooNE

Author: G. B. Mills, Alexis A. Aguilar-Arevalo, Zelimir Djurcic, Z. Pavlovic, Rod Thornton, Animesh Chatterjee, W. Marsh, A. Bashyal, W. Ketchum, Patrick deNiverville, R. Carr, R. Tayloe, J. Mirabal, G. T. Garvey, T. Kobilarcik, J. A. Green, Teppei Katori, W. C. Wester, M. H. Shaevitz, D. H. White, H. Ray, R. G. Van de Water, C. Taylor, Ranjan Dharmapalan, W. C. Louis, W. Huelsnitz, Brian Batell, J. Yu, S. Shahsavarani, M. Backfish, D. Perevalov, C. D. Moore, Byron P. Roe, Robert Cooper, I. Stancu, I. L. De Icaza Astiz, Q. Liu, R. Ford, J. Grange, F. G. Garcia, G. Karagiorgi, P. Nienaber, and B. C. Brown
Subjects: Particle physics, Proton, Dark matter, FOS: Physical sciences, General Physics and Astronomy, 01 natural sciences, High Energy Physics - Experiment, law.invention, Nuclear physics, MiniBooNE, High Energy Physics - Experiment (hep-ex), High Energy Physics - Phenomenology (hep-ph), law, 0103 physical sciences, Beam dump, Fermilab, 010306 general physics, Physics, Elastic scattering, 010308 nuclear & particles physics, hep-ex, hep-ph, Coupling (probability), High Energy Physics - Phenomenology, Physics::Accelerator Physics, High Energy Physics::Experiment, Neutrino
Abstract: 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. Analysis methods developed for previous MiniBooNE scattering results were employed, and several constraining data sets were simultaneously analyzed to minimize systematic errors from neutrino flux and interaction rates. No excess of events over background was observed, leading to a 90\% confidence limit on the dark-matter cross section parameter, $Y=\epsilon^2\alpha_D(m_\chi/m_V)^4 \lesssim10^{-8}$, for $\alpha_D=0.5$ and for dark-matter masses of $0.01, Comment: 6 pages, 7 figures, Version consistent with final PRL
Published: 2017

8. First Direct-Detection Constraints on eV-Scale Hidden-Photon Dark Matter with DAMIC at SNOLAB

Author: A. Letessier-Selvon, T. A. Schwarz, I. Lawson, E. Tiouchichine, Mariangela Settimo, Jing Zhou, R. C. Thomas, B. Kilminster, A. Kavner, K. Ramanathan, X. Bertou, V. B. B. Mello, Juan Carlos D'Olivo, Alexis A. Aguilar-Arevalo, Juan Estrada, J. R. T. de Mello Neto, Gustavo Cancelo, Frederic Trillaud, Y. Sarkis, Jorge Molina, D. Amidei, A. Castañeda Vázquez, J. Liao, M. Sofo Haro, X. You, Javier Tiffenberg, D. Torres Machado, Claudio Chavez, A. Matalon, M. Butner, R. Gaior, G. Fernandez Moroni, F. Izraelevitch, B. A. Cervantes Vergara, K. P. Hernandez Torres, A. E. Chavarria, Paolo Privitera, Y. Guardincerri, Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE (UMR_7585)), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), DAMIC, Laboratoire de Physique Nucléaire et de Hautes Énergies ( LPNHE ), Université Pierre et Marie Curie - Paris 6 ( UPMC ) -Institut National de Physique Nucléaire et de Physique des Particules du CNRS ( IN2P3 ) -Université Paris Diderot - Paris 7 ( UPD7 ) -Centre National de la Recherche Scientifique ( CNRS ), and Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP)
Subjects: Particle physics, dark matter: interaction, Cosmology and Nongalactic Astrophysics (astro-ph.CO), Ciencias Físicas, [ PHYS.ASTR ] Physics [physics]/Astrophysics [astro-ph], Dark matter, Scalar field dark matter, photon: absorption, General Physics and Astronomy, FOS: Physical sciences, Astrophysics, Astrophysics::Cosmology and Extragalactic Astrophysics, dark matter: direct detection, 01 natural sciences, dark matter, High Energy Physics - Experiment, purl.org/becyt/ford/1 [https], High Energy Physics - Experiment (hep-ex), High Energy Physics - Phenomenology (hep-ph), [ PHYS.HEXP ] Physics [physics]/High Energy Physics - Experiment [hep-ex], Computer Science::Systems and Control, ionization, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], Warm dark matter, Dark Matter, 010306 general physics, Light dark matter, S030UDM, CCD, Physics, Solid-Sate detectors, 010308 nuclear & particles physics, Hot dark matter, dark matter: detector, purl.org/becyt/ford/1.3 [https], Astronomía, detector: sensitivity, High Energy Physics - Phenomenology, [PHYS.HPHE]Physics [physics]/High Energy Physics - Phenomenology [hep-ph], Weakly interacting massive particles, Mixed dark matter, [ PHYS.HPHE ] Physics [physics]/High Energy Physics - Phenomenology [hep-ph], [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], mixing: kinetic, CIENCIAS NATURALES Y EXACTAS, Dark fluid, Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract: We present direct detection constraints on the absorption of hidden-photon dark matter with particle masses in the range 1.2-30 eV$c^{-2}$ with the DAMIC experiment at SNOLAB. Under the assumption that the local dark matter is entirely constituted of hidden photons, the sensitivity to the kinetic mixing parameter $\kappa$ is competitive with constraints from solar emission, reaching a minimum value of 2.2$\times$$10^{-14}$ at 17 eV$c^{-2}$. These results are the most stringent direct detection constraints on hidden-photon dark matter in the galactic halo with masses 3-12 eV$c^{-2}$ and the first demonstration of direct experimental sensitivity to ionization signals $, Comment: 5 pages, 5 figures
Published: 2017

9. Initial results from the PIENU experiment

Author: Tristan Sullivan, T. Sullivan, A. Aguilar-Arevalo, M. Aoki, M. Blecher, D.I Britton, D.A Bryman, D. vom Bruch, S. Chen, J. Comfort, S. Cuen-Rochin, L. Doria, P. Gumplinger, A. Hussein, Y. Igarashi, S. Ito, S.H Kettell, L. Kurchaninov, L.S Littenberg, C. Malbrunot, R.E Mischke, T. Numao, D. Protopopescu, A. Sher, and D. Vavilov
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, 010308 nuclear & particles physics, Branching fraction, Physics beyond the Standard Model, High Energy Physics::Phenomenology, Condensed Matter Physics, 01 natural sciences, Atomic and Molecular Physics, and Optics, Nuclear physics, Pion, 0103 physical sciences, High Energy Physics::Experiment, Physical and Theoretical Chemistry, 010306 general physics, Particle Physics - Experiment, Lepton
Abstract: The pion branching ratio, $R_{\pi } = \frac { {\Gamma }(\pi ^{+} \rightarrow e^{+} \nu _{e} + \pi ^{+}\rightarrow e^{+} \nu _{e} \gamma )}{\Gamma (\pi ^{+} \rightarrow \mu ^{+} \nu _{\mu } + \pi ^{+} \rightarrow \mu ^{+} \nu _{\mu } \gamma )}$ , provides a sensitive test of lepton universality and constraints on many new physics scenarios. The theoretical uncertainty on the Standard Model prediction of R π is 0.02 %, a factor of twenty smaller than the experimental uncertainty. The analysis of a subset of data taken by the PIENU experiment will be presented. The result, R π = (1.2344 ± 0.0023(s t a t) ± 0.0019(s y s t)) ⋅ 10−4 [1], is consistent with the Standard Model prediction and represents a 0.1 % constraint on lepton non-universality.
Published: 2017

10. Search for massive neutrinos in π + → e + ν e ${\pi }^{+}{\rightarrow }e^{+}{\nu }_{e}$ decay

Author: Luca Doria, S. Cuen-Rochin, P. Gumplinger, Chloé Malbrunot, D. Protopopescu, Ahmed Hussein, T. Sullivan, Douglas Bryman, L. S. Littenberg, T. Numao, A. Sher, R. E. Mischke, J. R. Comfort, Dave Britton, S. H. Kettell, D. Vavilov, D. Vom Bruch, Masaharu Aoki, Alexis A. Aguilar-Arevalo, Y. Igarashi, Leonid Kurchaninov, Song Chen, M. Blecher, and S. Ito
Subjects: Physics, Nuclear and High Energy Physics, Range (particle radiation), Particle physics, 010308 nuclear & particles physics, Branching fraction, Electron, Weak interaction, Condensed Matter Physics, 01 natural sciences, Measure (mathematics), Atomic and Molecular Physics, and Optics, Nuclear physics, Pion, 0103 physical sciences, High Energy Physics::Experiment, Sensitivity (control systems), Physical and Theoretical Chemistry, Neutrino, 010306 general physics
Abstract: The PIENU experiment aims to measure the branching ratio of the charged pion decay with precision of < 0.1 %. This measurement is much sensitive to search for massive neutrinos coupled to electrons in ${\pi }^{+}{\rightarrow }e^{+}{\nu }_{e}$ decay. The initial analysis was completed and the upper limit on the neutrino mixing parameter |U e i |2 in the neutrino mass range of 0 to 55 MeV/c 2 was improved by a factor of 1.5, and the sensitivity for the mass range of 68 to 129 MeV/c 2 was improve by a factor of up to 4.
Published: 2016

11. High purity pion beam at TRIUMF

Author: J. Doornbos, N. Ito, Luca Doria, A. Sher, C. Malbrunot, B. Walker, S. H. Kettell, Leonid Kurchaninov, A.H. Hussein, T. Numao, M. Blecher, Glenn M. Marshall, R. Poutissou, J. R. Comfort, Douglas Bryman, K. Yamada, and Alexis A. Aguilar-Arevalo
Subjects: Accelerator Physics (physics.acc-ph), Nuclear and High Energy Physics, Particle physics, Physics - Instrumentation and Detectors, Nuclear Theory, FOS: Physical sciences, 01 natural sciences, High Energy Physics - Experiment, Nuclear physics, Momentum, High Energy Physics - Experiment (hep-ex), Pion, Pion beam, Positron, Particle separation, 0103 physical sciences, Calibration, Nuclear Experiment, 010306 general physics, Instrumentation, Physics, 010308 nuclear & particles physics, Instrumentation and Detectors (physics.ins-det), Physics::Accelerator Physics, Physics - Accelerator Physics, High Energy Physics::Experiment, Beam (structure)
Abstract: An extension of the TRIUMF M13 low-energy pion channel designed to suppress positrons based on an energy-loss technique is described. A source of beam channel momentum calibration from the decay pi+ --> e+ nu is also described., 5 pages
Published: 2009

12. Status of the PIENU experiment at TRIUMF

Author: R. E. Mischke, D. Vom Bruch, Leonid Kurchaninov, S. H. Kettell, Y. Igarashi, J. R. Comfort, T. Sullivan, Luca Doria, Alexis A. Aguilar-Arevalo, Chloé Malbrunot, D. Protopopescu, P. Gumplinger, Douglas Bryman, Ahmed Hussein, S. Ito, S. Cuen-Rochin, T. Numao, Dave Britton, D. Vavilov, Masaharu Aoki, L. S. Littenberg, Song Chen, A. Sher, and M. Blecher
Subjects: Physics, History, Particle physics, Muon, Meson, Branching fraction, Hadron, Computer Science Applications, Education, Nuclear physics, Particle decay, Pion, Particle Physics - Experiment, Lepton, Dimensionless quantity
Abstract: The PIENU experiment at TRIUMF aims to measure the branching ratio of pion decays R = Γ(π(+) → e(+)ν(e) + π(+) → e(+) ν(e)γ)/Γ(π(+)→μ(+)ν(μ) + π(+) → μ(+)ν(μ)γ) with precision
Published: 2015

13. Search for Dark Matter in the beam-dump of a proton beam with MiniBooNE

Author: Alexis A. Aguilar-Arevalo
Subjects: Physics, History, Particle physics, Proton, 010308 nuclear & particles physics, Dark matter, 01 natural sciences, Computer Science Applications, Education, law.invention, MiniBooNE, law, 0103 physical sciences, Beam dump, 010306 general physics, Beam (structure)
Published: 2017

14. Potential of CCDs for the study of sterile neutrino oscillations via Coherent Neutrino-Nucleus Elastic Scattering

Author: Marisol Chavez-Estrada and Alexis A. Aguilar-Arevalo
Subjects: Elastic scattering, Physics, History, Sterile neutrino, Particle physics, 010308 nuclear & particles physics, 01 natural sciences, Computer Science Applications, Education, Nuclear physics, medicine.anatomical_structure, 0103 physical sciences, medicine, Neutrino, 010306 general physics, Nucleus
Published: 2017

15. Physics at a future Neutrino Factory and super-beam facility

Author: Kenneth Long, S. Lola, K. Whisnant, Hitoshi Murayama, Andrea Romanino, Osamu Yasuda, S. Umasankar, Stefan Antusch, Sandhya Choubey, Belen Gavela, Elena Couce, B.L. Roberts, Y. Uchida, N. Kitazawa, B. A. Popov, Cecilia Lunardini, Frank Filthaut, Patrick Huber, A.G. Akeroyd, J.T. Peltoniemi, Andrea Donini, Paul Fraser Harrison, G. Karagiorgi, Marcos Dracos, Stephen F. King, Janet Conrad, Danny Marfatia, Andrea Vacchi, S.T. Petcov, Enrique Fernandez-Martinez, Mariam Tórtola, Yoshitaka Kuno, Julien Lesgourgues, Srubabati Goswami, Davide Meloni, Michael S. Zisman, Y. Nagashima, Hiroshi Nunokawa, W. Fetscher, Pilar Hernández, H. Sugiyama, Mingshui Chen, Carl H. Albright, Gian F. Giudice, N. K. Mondal, Manfred Lindner, P. Chimenti, A. Baldini, Silvia Pascoli, Alexis A. Aguilar-Arevalo, Juha Äystö, Walter Winter, Jacobo Lopez-Pavon, Takashi Matsushita, Mark Rolinec, Paul Langacker, Manuela Campanelli, Kazuhiro Tobe, V. Palladino, Vernon Barger, S. Geer, Klaus-Peter Jungmann, C. Biggio, Lisa L. Everett, Yasaman Farzan, J. Bouchez, Michel Diaz, P. J. Dornan, A. Blondel, M. H. Shaevitz, A. Yu. Smirnov, I. Antoniadis, José W. F. Valle, T. Schwetz, C. Rogers, M. Sorel, John Ellis, M. Mezzetto, Kai Zuber, Y. Okada, J.K. Nelson, J.J. Gómez-Cadenas, Michele Maltoni, A. Bandyopadhyay, Joachim Kopp, Sacha Davidson, Y. Grossman, A. van der Schaaf, Stefano Rigolin, Mayumi Aoki, David William Casper, Alexander Friedland, A. de Gouvea, J.E. Campagne, Raj Gandhi, Bandyopadhyay, A, Choubey, S, Gandhi, R, Goswami, S, Roberts, Bl, Bouchez, J, Antoniadis, I, Ellis, J, Giudice, Gf, Schwetz, T, Umasankar, S, Karagiorgi, G, Aguilar Arevalo, A, Conrad, Jm, Shaevitz, Mh, Pascoli, S, Geer, S, Campagne, Je, Rolinec, M, Blondel, A, Campanelli, M, Kopp, J, Lindner, M, Peltoniemi, J, Dornan, Pj, Long, K, Matsushita, T, Rogers, C, Uchida, Y, Dracos, M, Whisnant, K, Casper, D, Chen, Mc, Popov, B, Aysto, J, Marfatia, D, Okada, Y, Sugiyama, H, Jungmann, K, Lesgourgues, J, Zisman, M, Tortola, Ma, Friedland, A, Davidson, S, Antusch, S, Biggio, C, Donini, A, Fernandez Martinez, E, Gavela, B, Maltoni, M, Lopez Pavon, J, Rigolin, S, Mondal, N, Palladino, V, Filthaut, F, Albright, C, de Gouvea, A, Kuno, Y, Nagashima, Y, Mezzetto, M, Lola, S, Langacker, P, Baldini, A, Nunokawa, H, Meloni, Davide, Diaz, M, King, Sf, Zuber, K, Akeroyd, Ag, Grossman, Y, Farzan, Y, Tobe, K, Aoki, M, Murayama, H, Kitazawa, N, Yasuda, O, Petcov, S, Romanino, A, Chimenti, P, Vacchi, A, Smirnov, Ay, Couce, E, Gomez Cadenas, Jj, Hernandez, P, Sorel, M, Valle, Jwf, Harrison, Pf, Lunardini, C, Nelson, Jk, Barger, V, Everett, L, Huber, P, Winter, W, Fetscher, W, van der Schaaf, A., Blondel, Alain, Campanelli, Mario, Département de Physique des Particules (ex SPP) (DPhP), Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Laboratoire de l'Accélérateur Linéaire (LAL), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Département Recherches Subatomiques (DRS-IPHC), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), Laboratoire d'Annecy-le-Vieux de Physique Théorique (LAPTH), Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), Institut de Physique Nucléaire de Lyon (IPNL), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Département de Physique des Particules (ex SPP) (DPP), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), A., Bandyopadhyay, and Palladino, Vittorio
Subjects: [PHYS.ASTR.HE]Physics [physics]/Astrophysics [astro-ph]/High Energy Astrophysical Phenomena [astro-ph.HE], Particle physics, Physics::Instrumentation and Detectors, MUONIUM-ANTIMUONIUM CONVERSION, FOS: Physical sciences, General Physics and Astronomy, ddc:500.2, LONG-BASE-LINE, 01 natural sciences, 7. Clean energy, WARM DARK-MATTER, Nuclear physics, LEPTON-FLAVOR VIOLATION, ELECTRIC-DIPOLE MOMENT, High Energy Physics - Phenomenology (hep-ph), Double beta decay, 0103 physical sciences, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], ANOMALOUS MAGNETIC-MOMENT, 010306 general physics, Neutrino oscillation, Neutrino physics, Neutrino factory, Particle Physics - Phenomenology, R-PARITY VIOLATION, Physics, Muon, Anomalous magnetic dipole moment, 010308 nuclear & particles physics, [SDU.ASTR.HE]Sciences of the Universe [physics]/Astrophysics [astro-ph]/High Energy Astrophysical Phenomena [astro-ph.HE], LARGE EXTRA DIMENSIONS, DOUBLE-BETA-DECAY, Física, MU-E CONVERSION, High Energy Physics - Phenomenology, Experimental High Energy Physics, Large extra dimension, CP violation, Physics::Accelerator Physics, Neutrino Factory, High Energy Physics::Experiment, Neutrino
Abstract: The conclusions of the Physics Working Group of the international scoping study of a future Neutrino Factory and super-beam facility (the ISS) are presented. The ISS was carried by the international community between NuFact05, (the 7th International Workshop on Neutrino Factories and Superbeams, Laboratori Nazionali di Frascati, Rome, June 21-26, 2005) and NuFact06 (Ivine, California, 24{30 August 2006). The physics case for an extensive experimental programme to understand the properties of the neutrino is presented and the role of high-precision measurements of neutrino oscillations within this programme is discussed in detail. The performance of second generation super-beam experiments, beta-beam facilities, and the Neutrino Factory are evaluated and a quantitative comparison of the discovery potential of the three classes of facility is presented. High-precision studies of the properties of the muon are complementary to the study of neutrino oscillations. The Neutrino Factory has the potential to provide extremely intense muon beams and the physics potential of such beams is discussed in the final section of the report., 370 pages, 121 postscript figures
Published: 2009

16. Using L/E Oscillation Probability Distributions

Author: D. H. White, C. D. Moore, E. Church, Alexis A. Aguilar-Arevalo, Zelimir Djurcic, R. Ford, G. T. Garvey, Jan Conrad, J. Mousseau, G. B. Mills, J. Mirabal, B. Osmanov, C. M. Ignarra, G. Karagiorgi, Z. Pavlovic, H. Ray, I. Stancu, W. Huelsnitz, R. L. Imlay, Ranjan Dharmapalan, C. Mariani, Rgvd Water, Rex Tayloe, D. A. Finley, J. Spitz, T. Kobilarcik, J. Grange, B. P. Roe, C. C. Polly, P. Nienaber, G. Cheng, G. P. Zeller, R. A. Johnson, B. C. Brown, A. D. Russell, L. Bugel, E. D. Zimmerman, M. H. Shaevitz, D. Perevalov, W. C. Louis, W. Marsh, F. G. Garcia, Teppei Katori, and D. A. Wickremasinghe
Subjects: MiniBooNE, ICARUS, Physics, Particle physics, Data point, Oscillation, Probability distribution, Neutrino, Neutrino oscillation, Measure (mathematics)
Abstract: 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. In more detail, this paper also outlines how the $L/E$ distributions can be best calculated and used for model comparisons. Specifically, the paper presents the $L/E$ data points for the final MiniBooNE data samples and, in the Appendix, explains and corrects the mistaken analysis published by the ICARUS collaboration.
Published: 2014

17. Improved Search forν¯μ→ν¯eOscillations in the MiniBooNE Experiment

Author: G. T. Garvey, C. D. Moore, J. Grange, G. P. Zeller, B. Osmanov, F. G. Garcia, D. Perevalov, H. Ray, G. Karagiorgi, R. G. Van de Water, B. C. Brown, P. Nienaber, Zelimir Djurcic, D. A. Finley, L. Bugel, C. C. Polly, Rex Tayloe, G. Cheng, W. Marsh, I. Stancu, G. B. Mills, E. Church, T. Kobilarcik, J. Spitz, Alexis A. Aguilar-Arevalo, Z. Pavlovic, R. A. Johnson, R. Dharmapalan, C. Mariani, Teppei Katori, J. Mirabal, D. A. Wickremasinghe, A. D. Russell, R. Imlay, M. H. Shaevitz, B. P. Roe, W. C. Louis, J. Mousseau, R. Ford, W. Huelsnitz, E. D. Zimmerman, C. M. Ignarra, D. H. White, and Janet Conrad
Subjects: Physics, MiniBooNE, Liquid Scintillator Neutrino Detector, Sterile neutrino, Particle physics, Oscillation, General Physics and Astronomy, CP violation, High Energy Physics::Experiment, Fermilab, Neutrino, Neutrino oscillation
Abstract: The MiniBooNE experiment at Fermilab reports results from an analysis of ν¯e appearance data from 11.27×10²⁰ protons on target in the antineutrino mode, an increase of approximately a factor of 2 over the previously reported results. An event excess of 78.4±28.5 events (2.8σ) is observed in the energy range 200QEν
Published: 2013

18. First Measurement of the Muon Anti-Neutrino Double-Differential Charged Current Quasi-Elastic Cross Section

Author: M. O. Wascko, D. A. Wickremasinghe, E. Church, W. Marsh, B. Osmanov, J. Mousseau, G. Karagiorgi, B. C. Brown, Zelimir Djurcic, C. C. Polly, Teppei Katori, P. Nienaber, Z. Pavlovic, Alexis A. Aguilar-Arevalo, M. H. Shaevitz, I. Stancu, G. B. Mills, E. D. Zimmerman, R. Dharmapalan, L. Bugel, C. D. Moore, J. Grange, A. D. Russell, W. C. Louis, C. Mariani, F. G. Garcia, W. Huelsnitz, G. P. Zeller, D. Perevalov, R. Imlay, H. Ray, R. G. Van de Water, R. A. Johnson, G. Cheng, Rex Tayloe, J. Mirabal, D. A. Finley, T. Kobilarcik, R. Ford, J. Spitz, G. T. Garvey, Janet Conrad, C. M. Ignarra, D. H. White, and B. P. Roe
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, Muon, FOS: Physical sciences, High Energy Physics - Experiment, Nuclear physics, MiniBooNE, High Energy Physics - Experiment (hep-ex), Cross section (physics), Nuclear cross section, Neutrino, Nucleon, Neutrino oscillation, Charged current
Abstract: The largest sample ever recorded of $\numub$ charged-current quasi-elastic (CCQE, $\numub + p \to \mup + n$) candidate events is used to produce the minimally model-dependent, flux-integrated double-differential cross section $\frac{d^{2}\sigma}{dT_\mu d\uz}$ for $\numub$ incident on mineral oil. This measurement exploits the unprecedented statistics of the MiniBooNE anti-neutrino mode sample and provides the most complete information of this process to date. Also given to facilitate historical comparisons are the flux-unfolded total cross section $\sigma(E_\nu)$ and single-differential cross section $\frac{d\sigma}{d\qsq}$ on both mineral oil and on carbon by subtracting the $\numub$ CCQE events on hydrogen. The observed cross section is somewhat higher than the predicted cross section from a model assuming independently-acting nucleons in carbon with canonical form factor values. The shape of the data are also discrepant with this model. These results have implications for intra-nuclear processes and can help constrain signal and background processes for future neutrino oscillation measurements., Comment: 28 pages, 13 figures. Data release at http://www-boone.fnal.gov/for_physicists/data_release/ccqe_nubar/
Published: 2013

19. PIENU experiment at TRIUMF: A sensitive probe of new physics

Author: T. Numao, Dave Britton, S. H. Kettell, Koji Yamada, N. Ito, Song Chen, D. Vavilov, Y. Yoshida, Y. Igarashi, T. Sullivan, C. Malbrunot, A.H. Hussein, Luca Doria, Masaharu Aoki, J. R. Comfort, Alexis A. Aguilar-Arevalo, A. Sher, R. E. Mischke, Douglas Bryman, L. S. Littenberg, Leonid Kurchaninov, P. Gumplinger, S. Ito, A. Sandorfi, D. von Bruch, M. Ding, Y. Kuno, and M. Blecher
Subjects: Nuclear physics, Physics, Particle physics, Effective mass (solid-state physics), Pion, Branching fraction, Physics beyond the Standard Model, High Energy Physics::Experiment, Mass scale, Weak interaction
Abstract: A TRIUMF experiment, PIENU, which aims to measure the branching ratio of pion decays, R = Γ(π→eν+eνγ)/Γ(π→μν+μνγ) to a precision of 0.1% or better is described. Such a measurement provides the best test of electron-muon universality in weak interactions and is sensitive to an effective mass scale of up to 1000 TeV in new physics.
Published: 2013

20. Low Mass WIMP Searches with a Neutrino Experiment: A Proposal for Further MiniBooNE Running

Author: R. A. Johnson, Adam Ritz, B. P. Roe, C. C. Polly, Brian Batell, D. Perevalov, R. Ford, W. Marsh, J. Mirabal, David McKeen, W. Huelsnitz, H. Ray, R. G. Van de Water, S. Habib, I. Stancu, D. A. Wickremasinghe, Maxim Pospelov, Rex Tayloe, W. C. Louis, J. Grange, T. Kobilarcik, P. Nienaber, F. G. Garcia, G. T. Garvey, W. Ketchum, Ranjan Dharmapalan, Z. Pavlovic, Alexis A. Aguilar-Arevalo, C. D. Moore, G. B. Mills, Patrick deNiverville, C. Jiang, and Robert Cooper
Subjects: Elastic scattering, MiniBooNE, Nuclear physics, Physics, Particle physics, Muon, WIMP, Physics::Instrumentation and Detectors, Weakly interacting massive particles, Dark matter, High Energy Physics::Experiment, Neutrino, Nucleon
Abstract: A proposal submitted to the FNAL PAC is described to search for light sub-GeV WIMP dark matter at MiniBooNE. The possibility to steer the beam past the target and into an absorber leads to a significant reduction in neutrino background, allowing for a sensitive search for elastic scattering of WIMPs off nucleons or electrons in the detector. Dark matter models involving a vector mediator can be probed in a parameter region consistent with the required thermal relic density, and which overlaps the region in which these models can resolve the muon g-2 discrepancy. Estimates of signal significance are presented for various operational modes and parameter points. The experimental approach outlined for applying MiniBooNE to a light WIMP search may also be applicable to other neutrino facilities.
Published: 2012

21. Letter of Intent: A new investigation of $\nu_\mu\rightarrow\nu_e$ oscillations with improved sensitivity in an enhanced MiniBooNE experiment

Author: I. Stancu, Z. Pavlovic, W. Huelsnitz, S. Habib, Robert Cooper, C. Mauger, Alexis A. Aguilar-Arevalo, G. Karagiorgi, G. B. Mills, Zelimir Djurcic, C. D. Moore, W. C. Louis, L. Bugel, B. C. Brown, D. H. White, Jan Conrad, R. Imlay, B. Osmanov, A. Wickremasinghe, M. H. Shaevitz, J. Mousseau, D. Perevalov, J. Grange, R. A. Johnson, W. Marsh, M. Tzanov, F. G. Garcia, Rex Tayloe, P. Nienaber, B. P. Roe, C. C. Polly, C. Jiang, H. Ray, R. G. Van de Water, Ranjan Dharmapalan, R. Ford, and G. T. Garvey
Subjects: Physics, MiniBooNE, Particle physics, Quasielastic scattering, Neutral current, Nuclear Theory, High Energy Physics::Experiment, Fermilab, Neutrino, Nuclear Experiment, Neutrino oscillation, Nucleon, Charged current
Abstract: We propose adding 300 mg/l PPO to the existing MiniBooNE detector mineral oil to increase the scintillation response. This will allow the detection of associated neutrons and increase sensitivity to final-state nucleons in neutrino interactions. This increased capability will enable an independent test of whether the current excess seen in the MiniBooNE oscillation search is signal or background. In addition it will enable other neutrino interaction measurements to be made including a search for the strange-quark contribution to the nucleon spin Delta s and a low-energy measurement of charged-current quasielastic scattering.
Published: 2012

22. Dual baseline search for muon neutrino disappearance at0.5 eV2<Δm2<40 eV2

Author: L. Bugel, Panagiotis Spentzouris, D. Orme, S. Mizugashira, E. Hawker, T. A. Shibata, H. Ray, J. A. Green, H. B. White, B. J. P. Jones, R. G. Van de Water, Y. Kobayashi, W. Metcalf, J. A. Nowak, R. B. Patterson, J. J. Walding, J. Grange, J. L. Raaf, P. D. Meyers, G. Karagiorgi, P. Nienaber, J. Catala-Perez, G. P. Zeller, V. T. McGary, A. Curioni, R. Dharmapalan, I. Stancu, R. Imlay, G. Cheng, M. O. Wascko, Zelimir Djurcic, C. C. Polly, M. Sung, S. Ouedraogo, H. Takei, R. A. Johnson, C. Giganti, S. Masuike, R. Ford, T. L. Hart, A. O. Bazarko, C. Green, R. H. Nelson, Y. Uchida, A. D. Russell, Z. Pavlovic, M. H. Shaevitz, M. Soderberg, I. J. Taylor, I. Kourbanis, Yasuhiro Nakajima, David Smith, E. D. Zimmerman, G. Mitsuka, R. Napora, L. Ludovici, M. Sorel, Federico Sanchez, Alexis A. Aguilar-Arevalo, B. Osmanov, S. Koutsoliotas, F. Mills, D. A. Finley, Katsuki Hiraide, Jocelyn Monroe, C. E. Anderson, D. H. White, M. Tzanov, W. C. Louis, F. G. Garcia, Y. Miyachi, Y. L. Liu, W. Huelsnitz, T. Kobilarcik, B. C. Brown, B. P. Roe, C. Mariani, M. J. Wilking, Y. Hayato, J. Mousseau, S. J. Brice, D. W. Schmitz, E. M. Laird, R. J. Tesarek, D. C. Cox, Masashi Yokoyama, M. Tanaka, P. H. Kasper, G. McGregor, Andrew J. Hanson, A. J. Franke, Kodai Matsuoka, H. K. Tanaka, Tsuyoshi Nakaya, U. Dore, V. D. Sandberg, Hidetoshi Kubo, C. Mauger, J. M. Link, Y. Kurimoto, C. D. Moore, H. A. Tanaka, H. J. Yang, G. Jover-Manas, P. Guzowski, Rex Tayloe, Janet Conrad, B. T. Fleming, S. K. Linden, E.J. Prebys, J. Spitz, R. J. Stefanski, L. Coney, R. Schirato, G. T. Garvey, J.J. Gómez-Cadenas, Jun Cao, F. C. Shoemaker, D. Perevalov, J. L. Alcaraz-Aunion, G. B. Mills, Kendall Mahn, W. Marsh, Minoru Otani, Teppei Katori, and P. F. Loverre
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, Cherenkov detector, Detector, law.invention, Nuclear physics, MiniBooNE, law, Muon neutrino, Fermilab, Neutrino, Neutrino oscillation, Charged current
Abstract: The SciBooNE and MiniBooNE collaborations report the results of a νμ disappearance search in the Δ'm2 region of 0.5-40 eV2. The neutrino rate as measured by the SciBooNE tracking detectors is used to constrain the rate at the MiniBooNE Cherenkov detector in the first joint analysis of data from both collaborations. Two separate analyses of the combined data samples set 90% confidence level (CL) limits on νμ disappearance in the 0.5-40 eV2 Δm2 region, with an improvement over previous experimental constraints between 10 and 30 eV2
Published: 2012

23. Measurement of the pion branching ratio at TRIUMF

Author: C. Malbrunot, P. Gumplinger, Alexis A. Aguilar-Arevalo, T. Numao, Makoto Yoshida, D. Vavilov, Dave Britton, J. R. Comfort, Masaharu Aoki, S. Ito, Leonid Kurchaninov, Douglas Bryman, T. Sullivan, L. Littenberg, Y. Igarashi, M. Blecher, Luca Doria, S. Kettell, A. Sher, Song Chen, A.H. Hussein, M. Ding, and Y. Kuno
Subjects: Physics, Nuclear physics, Particle physics, Pion, Branching fraction, Hadron, Weak interaction, Universality (dynamical systems)
Abstract: The branching ratio of pion decays, R = Γ(π+→e+νe+π+→e+νeγ)Γ(π+→μ+νμ+π+→μ+νμγ is one of the most accurately calculated decay processes involving hadrons and has provided one of the most stringent tests of the hypothesis of electron-muon universality in weak interactions. The current experimental branching ratio Rexp = (1.230±0.004)×10−4 is 40 times less precise than the theoretical prediction RSM = 1.2352(1)10−4. The TRIUMF PIENU experiment aims at measuring the pion branching ratio with a precision improved by at least a factor five.
Published: 2012

24. ORKA: Measurement of the $K^ \to \pi^+ \nu \bar{\nu}$ decay at Fermilab

Author: David C. Christian, Shaomin Chen, Roberto Carosi, A.H. Hussein, Julian Budagov, Elizabeth Worcester, T. Numao, L. S. Littenberg, Douglas Bryman, Oleg Mineev, David E. Jaffe, K. T. Pitts, D. Vavilov, Leo Bellantoni, Y. Davydov, Jonathan Lewis, Brendan Casey, Artur Shaykhiev, Mingming Ding, Andreas Kronfeld, Zhe Wang, C. Gatto, A. Sher, L. Doria, A. Artikov, Herman B. White, Peter Wilson, Robert Tschirhart, S. H. Kettell, D. A. Jensen, Jack Ritchie, Yuri Kudenko, V. Glagolev, Sergei Striganov, Alexis A. Aguilar-Arevalo, Jurgen Engelfried, and J. R. Comfort
Subjects: Physics, Nuclear physics, Particle physics, Meson, Branching fraction, Physics beyond the Standard Model, Hadron, Elementary particle, Fermion, Boson, Dimensionless quantity
Abstract: A high precision measurement of the ultra-rare K{sup +} {yields} {pi}{sup +} {nu}{bar {nu}} decay at Fermilab would be one of the most incisive probes of quark flavor physics this decade. Its dramatic reach for uncovering new physics is due to several important factors: (1) The branching ratio is sensitive to most new physics models which extend the Standard Model to solve its considerable problems. (2) The Standard Model predictions for the K{sup +} {yields} {pi}{sup +} {nu}{bar {nu}} and K{sub L}{sup 0} {yields} {pi}{sup 0} {nu}{bar {nu}} branching fractions are broadly recognized to be theoretically robust at the 5-10% level. Only a precious few accessible loop-dominated quark processes can be predicted with this level of certainty. (3) The K{sup +} {yields} {pi}{sup +} {nu}{bar {nu}} branching fraction is highly suppressed in the Standard Model to the level < 10{sup -10} (
Published: 2011

25. Measurement ofνμ-induced charged-current neutral pion production cross sections on mineral oil atEν∈0.5–2.0 GeV

Author: Janet Conrad, R. Ford, C. Green, B. T. Fleming, Alexis A. Aguilar-Arevalo, S. Koutsoliotas, R. J. Stefanski, F. Mills, M. Soderberg, S. K. Linden, J. Spitz, R. Dharmapalan, W. Marsh, E.J. Prebys, A. Curioni, W. Metcalf, B. P. Roe, M. Sung, David Smith, S. Ouedraogo, B. C. Brown, A. D. Russell, Teppei Katori, H. J. Yang, V. D. Sandberg, T. L. Hart, D. W. Schmitz, R. Schirato, M. H. Shaevitz, G. T. Garvey, J. M. Link, C. E. Anderson, M. J. Wilking, R. B. Patterson, R. H. Nelson, G. P. Zeller, D. Perevalov, M. Tzanov, Rex Tayloe, P. D. Meyers, F. G. Garcia, Jun Cao, Z. Djurcic, G. Karagiorgi, Jocelyn Monroe, P. H. Kasper, P. Nienaber, I. Stancu, Kendall Mahn, L. Bugel, D. H. White, G. B. Mills, R. Imlay, W. C. Louis, B. Osmanov, M. O. Wascko, D. C. Cox, G. McGregor, E. D. Zimmerman, T. Kobilarcik, Y. L. Liu, J. Grange, F. C. Shoemaker, S. J. Brice, A. O. Bazarko, M. Sorel, E. Hawker, H. Ray, R. G. Van de Water, V. T. McGary, J. A. Nowak, C. Mauger, C. D. Moore, H. A. Tanaka, J. Mousseau, E. M. Laird, J. A. Green, Panagiotis Spentzouris, J. L. Raaf, R. A. Johnson, C. C. Polly, I. Kourbanis, D. A. Finley, Z. Pavlovic, and L. Coney
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, Muon, Meson, Physics::Instrumentation and Detectors, Nuclear physics, Pion, Physics::Accelerator Physics, High Energy Physics::Experiment, Fermilab, Neutrino, Energy source, Charged current, Lepton
Abstract: The authors would like to acknowledge the support of Fermilab, the Department of Energy, and the National Science Foundation in the construction, operation, and data analysis of the Mini Booster Neutrino Experiment.
Published: 2011

26. Measurement of neutrino-induced charged-current charged pion production cross sections on mineral oil atEν∼1 GeV

Author: A. A. Aguilar-Arevalo, C. E. Anderson, A. O. Bazarko, S. J. Brice, B. C. Brown, L. Bugel, J. Cao, L. Coney, J. M. Conrad, D. C. Cox, A. Curioni, R. Dharmapalan, Z. Djurcic, D. A. Finley, B. T. Fleming, R. Ford, F. G. Garcia, G. T. Garvey, J. Grange, C. Green, J. A. Green, T. L. Hart, E. Hawker, R. Imlay, R. A. Johnson, G. Karagiorgi, P. Kasper, T. Katori, T. Kobilarcik, I. Kourbanis, S. Koutsoliotas, E. M. Laird, S. K. Linden, J. M. Link, Y. Liu, W. C. Louis, K. B. M. Mahn, W. Marsh, C. Mauger, V. T. McGary, G. McGregor, W. Metcalf, P. D. Meyers, F. Mills, G. B. Mills, J. Monroe, C. D. Moore, J. Mousseau, R. H. Nelson, P. Nienaber, J. A. Nowak, B. Osmanov, S. Ouedraogo, R. B. Patterson, Z. Pavlovic, D. Perevalov, C. C. Polly, E. Prebys, J. L. Raaf, H. Ray, B. P. Roe, A. D. Russell, V. Sandberg, R. Schirato, D. Schmitz, M. H. Shaevitz, F. C. Shoemaker, D. Smith, M. Soderberg, M. Sorel, P. Spentzouris, J. Spitz, I. Stancu, R. J. Stefanski, M. Sung, H. A. Tanaka, R. Tayloe, M. Tzanov, R. Van de Water, M. O. Wascko, D. H. White, M. J. Wilking, H. J. Yang, G. P. Zeller, and E. D. Zimmerman
Subjects: MiniBooNE, Nuclear physics, Physics, Nuclear and High Energy Physics, Particle physics, Muon, Pion, Meson, High Energy Physics::Experiment, Neutrino, Energy source, Charged current, Lepton
Abstract: Using a high-statistics, high-purity sample of {nu}{sub {mu}-}induced charged current, charged pion events in mineral oil (CH{sub 2}), MiniBooNE reports a collection of interaction cross sections for this process. This includes measurements of the CC{pi}{sup +} cross section as a function of neutrino energy, as well as flux-averaged single- and double-differential cross sections of the energy and direction of both the final-state muon and pion. In addition, each of the single-differential cross sections are extracted as a function of neutrino energy to decouple the shape of the MiniBooNE energy spectrum from the results. In many cases, these cross sections are the first time such quantities have been measured on a nuclear target and in the 1 GeV energy range.
Published: 2011

27. Measurement of the neutrino component of an anti-neutrino beam observed by a non-magnetized detector

Author: G. T. Garvey, Rex Tayloe, D. H. White, R. H. Nelson, E. D. Zimmerman, G. P. Zeller, L. Bugel, G. Karagiorgi, P. Nienaber, R. Imlay, J. Spitz, V. Nguyen, W. Metcalf, J. Grange, J. A. Green, T. Kobilarcik, H. Ray, A. D. Russell, C. C. Polly, R. G. Van de Water, I. Stancu, D. Perevalov, J. A. Nowak, R. A. Johnson, Alexis A. Aguilar-Arevalo, Janet Conrad, Kendall Mahn, R. Ford, J. Mirabal, C. E. Anderson, M. Tzanov, F. G. Garcia, W. Marsh, Teppei Katori, R. J. Stefanski, S. J. Brice, C. D. Moore, Z. Pavlovic, M. Sorel, M. O. Wascko, W. C. Louis, M. J. Wilking, M. H. Shaevitz, G. B. Mills, R. Dharmapalan, C. Mauger, J. Mousseau, B. T. Fleming, S. K. Linden, B. P. Roe, B. Osmanov, A. Patch, B. C. Brown, and Z. Djurcic
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, Muon, Meson, Physics::Instrumentation and Detectors, Astrophysics::High Energy Astrophysical Phenomena, FOS: Physical sciences, High Energy Physics - Experiment, Nuclear physics, MiniBooNE, High Energy Physics - Experiment (hep-ex), Pion, Antimatter, High Energy Physics::Experiment, Neutrino, Energy (signal processing), Lepton
Abstract: Two independent methods are employed to measure the neutrino flux of the anti-neutrino-mode beam observed by the MiniBooNE detector. The first method compares data to simulated event rates in a high purity $\numu$ induced charged-current single $\pip$ (CC1$\pip$) sample while the second exploits the difference between the angular distributions of muons created in $\numu$ and $\numub$ charged-current quasi-elastic (CCQE) interactions. The results from both analyses indicate the prediction of the neutrino flux component of the pre-dominately anti-neutrino beam is over-estimated - the CC1$\pip$ analysis indicates the predicted $\numu$ flux should be scaled by $0.76 \pm 0.11$, while the CCQE angular fit yields $0.65 \pm 0.23$. The energy spectrum of the flux prediction is checked by repeating the analyses in bins of reconstructed neutrino energy, and the results show that the spectral shape is well modeled. These analyses are a demonstration of techniques for measuring the neutrino contamination of anti-neutrino beams observed by future non-magnetized detectors., 15 pages, 7 figures, published in Physical Review D, latest version reflects changes from referee comments
Published: 2011

28. Measurement of the neutrino neutral-current elastic differential cross section on mineral oil atEν∼1 GeV

Author: B. Osmanov, I. Kourbanis, D. Perevalov, J. A. Green, D. A. Finley, J. L. Raaf, R. A. Johnson, G. Karagiorgi, P. Nienaber, W. C. Louis, C. E. Anderson, M. Tzanov, F. G. Garcia, Kendall Mahn, E. D. Zimmerman, M. Soderberg, I. Stancu, E. Hawker, C. D. Moore, G. P. Zeller, W. Marsh, H. A. Tanaka, H. Ray, C. Green, Janet Conrad, T. L. Hart, F. Mills, R. G. Van de Water, M. H. Shaevitz, Teppei Katori, Y. L. Liu, J. Cao, R. J. Stefanski, V. T. McGary, D. W. Schmitz, L. Coney, S. Koutsoliotas, Rex Tayloe, G. B. Mills, J. A. Nowak, R. B. Patterson, D. H. White, Z. Djurcic, David Smith, M. O. Wascko, P. H. Kasper, A. D. Russell, B. C. Brown, R. Schirato, G. T. Garvey, Alexis A. Aguilar-Arevalo, R. Ford, L. Bugel, T. Kobilarcik, F. C. Shoemaker, R. H. Nelson, Z. Pavlovic, C. C. Polly, A. Curioni, M. Sung, J. Spitz, M. Sorel, B. T. Fleming, D. C. Cox, S. K. Linden, E.J. Prebys, G. McGregor, S. Ouedraogo, Panagiotis Spentzouris, J. Grange, A. O. Bazarko, J. Mousseau, E. M. Laird, R. Dharmapalan, R. Imlay, Jocelyn Monroe, W. Metcalf, H. J. Yang, S. J. Brice, P. D. Meyers, C. Mauger, M. J. Wilking, B. P. Roe, V. D. Sandberg, and J. M. Link
Subjects: Physics, Elastic scattering, Nuclear and High Energy Physics, Particle physics, Nuclear Theory, Form factor (quantum field theory), Nuclear physics, Baryon, MiniBooNE, Neutrino, Nuclear Experiment, Nucleon, Energy (signal processing), Lepton
Abstract: We report a measurement of the flux-averaged neutral-current elastic differential cross section for neutrinos scattering on mineral oil (CH{sub 2}) as a function of four-momentum transferred squared, Q{sup 2}. It is obtained by measuring the kinematics of recoiling nucleons with kinetic energy greater than 50 MeV which are readily detected in MiniBooNE. This differential cross-section distribution is fit with fixed nucleon form factors apart from an axial mass M{sub A} that provides a best fit for M{sub A}=1.39{+-}0.11 GeV. Using the data from the charged-current neutrino interaction sample, a ratio of neutral-current to charged-current quasielastic cross sections as a function of Q{sup 2} has been measured. Additionally, single protons with kinetic energies above 350 MeV can be distinguished from neutrons and multiple nucleon events. Using this marker, the strange quark contribution to the neutral-current axial vector form factor at Q{sup 2}=0, {Delta}s, is found to be {Delta}s=0.08{+-}0.26.
Published: 2010

29. Event Excess in the MiniBooNE Search forν¯μ→ν¯eOscillations

Author: M. Sorel, C. E. Anderson, W. C. Louis, M. O. Wascko, M. Tzanov, F. G. Garcia, L. Bugel, M. J. Wilking, C. C. Polly, Z. Pavlovic, Alexis A. Aguilar-Arevalo, R. Ford, J. Mousseau, J. A. Green, H. Ray, R. G. Van de Water, T. Kobilarcik, G. P. Zeller, J. A. Nowak, R. Imlay, C. D. Moore, D. H. White, S. J. Brice, A. D. Russell, R. Dharmapalan, R. H. Nelson, G. Karagiorgi, Janet Conrad, P. Nienaber, R. A. Johnson, Rex Tayloe, E. D. Zimmerman, M. H. Shaevitz, C. Mauger, R. J. Stefanski, J. Mirabal, B. P. Roe, W. Metcalf, V. T. Nguyen, R. Schirato, G. T. Garvey, J. Spitz, W. Marsh, B. T. Fleming, S. K. Linden, Teppei Katori, D. Perevalov, Kendall Mahn, J. Grange, G. B. Mills, B. Osmanov, Z. Djurcic, B. C. Brown, and I. Stancu
Subjects: Nuclear physics, MiniBooNE, Physics, Particle physics, Antiparticle, Antimatter, General Physics and Astronomy, Neutrino, Neutrino oscillation, Particle identification, Energy (signal processing), Lepton
Abstract: The MiniBooNE experiment at Fermilab reports results from a search for {nu}{sub {mu}{yields}{nu}e} oscillations, using a data sample corresponding to 5.66x10{sup 20} protons on target. An excess of 20.9{+-}14.0 events is observed in the energy range 475
Published: 2010

30. Publisher’s Note: Measurement of the Ratio of theνμCharged-Current Single-Pion Production to Quasielastic Scattering with a 0.8 GeV Neutrino Beam on Mineral Oil [Phys. Rev. Lett.103, 081801 (2009)]

Author: A. A. Aguilar-Arevalo, C. E. Anderson, A. O. Bazarko, S. J. Brice, B. C. Brown, L. Bugel, J. Cao, L. Coney, J. M. Conrad, D. C. Cox, A. Curioni, Z. Djurcic, D. A. Finley, B. T. Fleming, R. Ford, F. G. Garcia, G. T. Garvey, C. Green, J. A. Green, T. L. Hart, E. Hawker, R. Imlay, R. A. Johnson, G. Karagiorgi, P. Kasper, T. Katori, T. Kobilarcik, I. Kourbanis, S. Koutsoliotas, E. M. Laird, S. K. Linden, J. M. Link, Y. Liu, W. C. Louis, K. B. M. Mahn, W. Marsh, V. T. McGary, G. McGregor, W. Metcalf, P. D. Meyers, F. Mills, G. B. Mills, J. Monroe, C. D. Moore, R. H. Nelson, P. Nienaber, J. A. Nowak, B. Osmanov, S. Ouedraogo, R. B. Patterson, D. Perevalov, C. C. Polly, E. Prebys, J. L. Raaf, H. Ray, B. P. Roe, A. D. Russell, V. Sandberg, R. Schirato, D. Schmitz, M. H. Shaevitz, F. C. Shoemaker, D. Smith, M. Soderberg, M. Sorel, P. Spentzouris, J. Spitz, I. Stancu, R. J. Stefanski, M. Sung, H. A. Tanaka, R. Tayloe, M. Tzanov, R. Van de Water, M. O. Wascko, D. H. White, M. J. Wilking, H. J. Yang, G. P. Zeller, and E. D. Zimmerman
Subjects: Physics, Nuclear physics, Nuclear reaction, Quasielastic scattering, Particle physics, Pion, Scattering, General Physics and Astronomy, Neutrino, Energy source, Charged current, Lepton
Published: 2010

31. Measurement ofνμandν¯μinduced neutral current singleπ0production cross sections on mineral oil atEν∼O(1 GeV)

Author: W. C. Louis, T. Kobilarcik, Z. Pavlovic, D. C. Cox, G. McGregor, F. Mills, M. Soderberg, L. Coney, F. C. Shoemaker, S. J. Brice, G. Karagiorgi, Janet Conrad, G. P. Zeller, J. Grange, P. Nienaber, D. H. White, Rex Tayloe, J. A. Green, J. L. Raaf, W. Marsh, A. D. Russell, E. Hawker, R. J. Stefanski, Y. Liu, B. Osmanov, C. C. Polly, H. Ray, R. G. Van de Water, R. A. Johnson, D. W. Schmitz, J. A. Nowak, Teppei Katori, Jun Cao, Z. Djurcic, I. Stancu, I. Kourbanis, D. Perevalov, R. Imlay, Alexis A. Aguilar-Arevalo, M. Sorel, David Smith, L. Bugel, Kendall Mahn, G. B. Mills, A. O. Bazarko, D. A. Finley, C. D. Moore, H. A. Tanaka, V. T. McGary, T. L. Hart, H. J. Yang, Panagiotis Spentzouris, B. C. Brown, M. H. Shaevitz, R. B. Patterson, A. Curioni, M. Sung, B. T. Fleming, S. K. Linden, E. D. Zimmerman, S. Koutsoliotas, S. Ouedraogo, E.J. Prebys, M. O. Wascko, R. H. Nelson, C. E. Anderson, M. Tzanov, F. G. Garcia, J. Spitz, R. Schirato, G. T. Garvey, R. Ford, J. Mousseau, C. Green, P. H. Kasper, E. M. Laird, B. P. Roe, W. Metcalf, M. J. Wilking, Jocelyn Monroe, V. D. Sandberg, J. M. Link, P. D. Meyers, C. Mauger, and J. Gonzales
Subjects: MiniBooNE, Nuclear physics, Physics, Nuclear and High Energy Physics, Particle physics, Meson, Hadron, Production (computer science), Neutrino, Nucleon, Energy (signal processing), Lepton
Abstract: MiniBooNE reports the first absolute cross sections for neutral current single {pi}{sup 0} production on CH{sub 2} induced by neutrino and antineutrino interactions measured from the largest sets of NC {pi}{sup 0} events collected to date. The principal result consists of differential cross sections measured as functions of {pi}{sup 0} momentum and {pi}{sup 0} angle averaged over the neutrino flux at MiniBooNE. We find total cross sections of (4.76 {+-} 0.05{sub stat} {+-} 0.40{sub sys}) x 10{sup -40} cm{sup 2}/nucleon at a mean energy of = 808 MeV and (1.48 {+-} 0.05{sub stat} {+-} 0.14{sub sys}) x 10{sup -40} cm{sup 2}/nucleon at a mean energy of = 664 MeV for {nu}{sub {mu}} and {bar {nu}}{sub {mu}} induced production, respectively. In addition, we have included measurements of the neutrino and antineutrino total cross sections for incoherent exclusive NC 1{pi}{sup 0} production corrected for the effects of final state interactions to compare to prior results.
Published: 2010

32. Results from Neutrino Oscillations Experiments

Author: Alexis Aguilar-Arevalo and Elizabeth Padilla-Rodal
Subjects: Physics, Particle physics, Solar energetic particles, Physics::Instrumentation and Detectors, Astrophysics::High Energy Astrophysical Phenomena, High Energy Physics::Phenomenology, Solar neutrino problem, Massless particle, Measurements of neutrino speed, High Energy Physics::Experiment, Invariant mass, Neutrino, Neutrino oscillation, Lepton
Abstract: The interpretation of the results of early solar and atmospheric neutrino experiments in terms of neutrino oscillations has been verified by several recent experiments using both, natural and man‐made sources. The observations provide compelling evidence in favor of the existence of neutrino masses and mixings. These proceedings give a general description of the results from neutrino oscillation experiments, the current status of the field, and some possible future developments.
Published: 2010

33. Erratum: LeptonicCPviolation studies at MiniBooNE in the (3+2) sterile neutrino oscillation hypothesis [Phys. Rev. D75, 013011 (2007)]

Author: G. Karagiorgi, Vernon Barger, M. H. Shaevitz, Kerry Whisnant, Jan Conrad, M. Sorel, and Alexis A. Aguilar-Arevalo
Subjects: Physics, Nuclear and High Energy Physics, Sterile neutrino, Particle physics, 010308 nuclear & particles physics, Oscillation, 01 natural sciences, MiniBooNE, Nuclear physics, 0103 physical sciences, Measurements of neutrino speed, CP violation, Neutrino, 010306 general physics, Neutrino oscillation
Published: 2009

34. Letter of Intent to Build a MiniBooNE Near Detector: BooNE

Author: G. P. Zeller, B. Osmanov, D. H. White, J. A. Green, Z. Pavlovic, W. Metcalf, G. T. Garvey, W. C. Louis, W. Marsh, Craig Moore, G. B. Mills, I. Stancu, David Smith, B. P. Roe, T. Kobilarcik, Zelimir Djurcic, Alexis A. Aguilar-Arevalo, J. Grange, R. Ford, H. Ray, R. G. Van de Water, and C. Mauger
Subjects: Physics, Particle physics, Sterile neutrino, Physics::Instrumentation and Detectors, High Energy Physics::Phenomenology, Order (ring theory), MiniBooNE, Nuclear physics, CP violation, High Energy Physics::Experiment, Production (computer science), Neutrino, Neutrino oscillation, Lepton
Abstract: There is accumulating evidence for a difference between neutrino and antineutrino oscillations at the {approx}1 eV{sup 2} scale. The MiniBooNE experiment observes an unexplained excess of electron-like events at low energies in neutrino mode, which may be due, for example, to either a neutral current radiative interaction, sterile neutrino decay, or to neutrino oscillations involving sterile neutrinos and which may be related to the LSND signal. No excess of electron-like events (-0.5 {+-} 7.8 {+-} 8.7), however, is observed so far at low energies in antineutrino mode. Furthermore, global 3+1 and 3+2 sterile neutrino fits to the world neutrino and antineutrino data suggest a difference between neutrinos and antineutrinos with significant (sin{sup 2} 2{theta}{sub {mu}{mu}} {approx} 35%) {bar {nu}}{sub {mu}} disappearance. In order to test whether the low-energy excess is due to neutrino oscillations and whether there is a difference between {nu}{sub {mu}} and {bar {nu}}{sub {mu}} disappearance, we propose building a second MiniBooNE detector at (or moving the existing MiniBooNE detector to) a distance of {approx}200 m from the Booster Neutrino Beam (BNB) production target. With identical detectors at different distances, most of the systematic errors will cancel when taking a ratio of events in the two detectors, asmore » the neutrino flux varies as 1/r{sup 2} to a calculable approximation. This will allow sensitive tests of oscillations for both {nu}{sub e} and {bar {nu}} appearance and {nu}{sub {mu}} and {bar {nu}}{sub {mu}} disappearance. Furthermore, a comparison between oscillations in neutrino mode and antineutrino mode will allow a sensitive search for CP and CPT violation in the lepton sector at short baseline ({Delta}m{sup 2} > 0.1 eV{sup 2}). Finally, by comparing the rates for a neutral current (NC) reaction, such as NC {pi}{sup 0} scattering or NC elastic scattering, a direct search for sterile neutrinos will be made. The initial amount of running time requested for the near detector will be a total of {approx}2E20 POT divided between neutrino mode and antineutrino mode, which will provide statistics comparable to what has already been collected in the far detector. A thorough understanding of this short-baseline physics will be of great importance to future long-baseline oscillation experiments.« less
Published: 2009

35. Search for Electron Antineutrino Appearance at theΔm2∼1 eV2Scale

Author: Janet Conrad, R. J. Stefanski, R. Ford, C. Green, W. Metcalf, R. H. Nelson, M. H. Shaevitz, D. Perevalov, L. Bugel, T. Kobilarcik, V. T. McGary, G. B. Mills, B. Osmanov, B. C. Brown, J. Gonzales, G. P. Zeller, I. Stancu, Kendall Mahn, C. C. Polly, W. Marsh, Z. Djurcic, B. P. Roe, Rex Tayloe, J. Grange, G. Karagiorgi, A. D. Russell, M. J. Wilking, P. Nienaber, Teppei Katori, J. A. Green, H. Ray, G. T. Garvey, D. H. White, R. G. Van de Water, M. O. Wascko, J. A. Nowak, Z. Pavlovic, R. A. Johnson, Alexis A. Aguilar-Arevalo, C. D. Moore, J. Spitz, C. Mauger, E. D. Zimmerman, S. J. Brice, B. T. Fleming, S. K. Linden, M. Sorel, W. C. Louis, R. Imlay, C. E. Anderson, M. Tzanov, F. G. Garcia, and J. Mousseau
Subjects: Nuclear physics, Physics, Nuclear reaction, MiniBooNE, Particle physics, Liquid Scintillator Neutrino Detector, Quasielastic scattering, General Physics and Astronomy, Neutrino, Nuclear Experiment, Neutrino oscillation, Electron neutrino, Lepton
Abstract: The MiniBooNE Collaboration reports initial results from a search for nu{sub m}u->nu{sub e} oscillations. A signal-blind analysis was performed using a data sample corresponding to 3.39x10{sup 20} protons on target. The data are consistent with background prediction across the full range of neutrino energy reconstructed assuming quasielastic scattering, 200
Published: 2009

36. Measurement of the Ratio of theνμCharged-Current Single-Pion Production to Quasielastic Scattering with a 0.8 GeV Neutrino Beam on Mineral Oil

Author: A. A. Aguilar-Arevalo, C. E. Anderson, A. O. Bazarko, S. J. Brice, B. C. Brown, L. Bugel, J. Cao, L. Coney, J. M. Conrad, D. C. Cox, A. Curioni, Z. Djurcic, D. A. Finley, B. T. Fleming, R. Ford, F. G. Garcia, G. T. Garvey, C. Green, J. A. Green, T. L. Hart, E. Hawker, R. Imlay, R. A. Johnson, G. Karagiorgi, P. Kasper, T. Katori, T. Kobilarcik, I. Kourbanis, S. Koutsoliotas, E. M. Laird, S. K. Linden, J. M. Link, Y. Liu, W. C. Louis, K. B. M. Mahn, W. Marsh, V. T. McGary, G. McGregor, W. Metcalf, P. D. Meyers, F. Mills, G. B. Mills, J. Monroe, C. D. Moore, R. H. Nelson, P. Nienaber, J. A. Nowak, B. Osmanov, S. Ouedraogo, R. B. Patterson, D. Perevalov, C. C. Polly, E. Prebys, J. L. Raaf, H. Ray, B. P. Roe, A. D. Russell, V. Sandberg, R. Schirato, D. Schmitz, M. H. Shaevitz, F. C. Shoemaker, D. Smith, M. Soderberg, M. Sorel, P. Spentzouris, J. Spitz, I. Stancu, R. J. Stefanski, M. Sung, H. A. Tanaka, R. Tayloe, M. Tzanov, R. Van de Water, M. O. Wascko, D. H. White, M. J. Wilking, H. J. Yang, G. P. Zeller, and E. D. Zimmerman
Subjects: Nuclear physics, Physics, MiniBooNE, Particle physics, Muon, Pion, Hadron, General Physics and Astronomy, High Energy Physics::Experiment, Neutrino, Energy source, Charged current, Lepton
Abstract: Charged current single pion production (CC{pi}{sup +}) and charged current quasi-elastic scattering (CCQE) are the most abundant interaction types for neutrinos at energies around 1 GeV, a region of great interest to oscillation experiments. The cross-sections for these processes, however, are not well understood in this energy range. This dissertation presents a measurement of the ratio of CC{pi}{sup +} to CCQE cross-sections for muon neutrinos on mineral oil (CH{sub 2}) in the MiniBooNE experiment. The measurement is presented here both with and without corrections for hadronic re-interactions in the target nucleus and is given as a function of neutrino energy in the range 0.4 GeV < E{sub {nu}} < 2.4 GeV. With more than 46,000 CC{pi}{sup +} events collected in MiniBooNE, and with a fractional uncertainty of roughly 11% in the region of highest statistics, this measurement represents a dramatic improvement in statistics and precision over previous CC{pi}{sup +} and CCQE measurements.
Published: 2009

37. Measurement ofνμandνeEvents in an Off-Axis Horn-Focused Neutrino Beam

Author: P. D. Meyers, B. P. Roe, Jocelyn Monroe, I. Kourbanis, A. O. Bazarko, T. Kobilarcik, V. D. Sandberg, Alexis A. Aguilar-Arevalo, Z. Pavlovic, J. M. Link, D. A. Finley, Janet Conrad, D. C. Cox, D. H. White, B. Viren, P. H. Kasper, G. McGregor, M. Sorel, G. Karagiorgi, C. D. Moore, R. Ford, J. A. Green, Brajesh C Choudhary, D. Perevalov, C. Green, P. Nienaber, J. L. Raaf, E. M. Laird, H. A. Tanaka, J. Hylen, S. J. Brice, L. Loiacono, J. K. Nelson, R. B. Patterson, H. R. Gallagher, I. Stancu, F. Mills, C. E. Anderson, Kendall Mahn, G. P. Zeller, D. A. Harris, R. A. Johnson, E. Hawker, W. Metcalf, M. Tzanov, F. G. Garcia, M. J. Wilking, R. Imlay, M. O. Wascko, D. W. Schmitz, C. C. Polly, Panagiotis Spentzouris, R. Zwaska, T. L. Hart, R. H. Nelson, R. J. Stefanski, W. Marsh, M. H. Shaevitz, S. Koutsoliotas, A. Marchionni, A. Curioni, P. Adamson, E. D. Zimmerman, M. Sodeberg, Z. Djurcic, Y. L. Liu, Francisco Yumiceva, P. Vahle, M. Sung, W. C. Louis, M. D. Messier, H. Ray, S. Ouedraogo, R. G. Van de Water, Teppei Katori, J. A. Nowak, H. J. Yang, V. T. Nguyen, David Smith, L. Bugel, B. C. Brown, Jun Cao, M. Bishai, G. B. Mills, Rex Tayloe, Sacha E Kopp, F. C. Shoemaker, R. Schirato, G. T. Garvey, B. T. Fleming, S. K. Linden, W. Smart, A. D. Russell, E.J. Prebys, and L. Coney
Subjects: Physics, Particle physics, Physics::Instrumentation and Detectors, General Physics and Astronomy, NuMI, Nuclear physics, MiniBooNE, Pion, Beamline, Physics::Accelerator Physics, High Energy Physics::Experiment, Fermilab, Neutrino, Beam (structure), Charged current
Abstract: We report the first observation of off-axis neutrino interactions in the MiniBooNE detector from the NuMI beam line at Fermilab. The MiniBooNE detector is located 745 m from the NuMI production target, at 110 mrad angle (6.3°) with respect to the NuMI beam axis. Samples of charged-current quasielastic νμ and νe interactions are analyzed and found to be in agreement with expectation. This provides a direct verification of the expected pion and kaon contributions to the neutrino flux and validates the modeling of the NuMI off-axis beam.
Published: 2009

38. Neutrino flux prediction at MiniBooNE

Author: S. Koutsoliotas, P. S. Martin, V. T. Nguyen, Janet Conrad, G. P. Zeller, I. Stancu, D. C. Cox, Panagiotis Spentzouris, G. Karagiorgi, P. Nienaber, D. H. White, V. D. Sandberg, G. McGregor, R. J. Stefanski, D. Perevalov, L. Coney, A. O. Bazarko, R. Ford, A. D. Russell, J. M. Link, C. Green, W. Metcalf, B. T. Fleming, J. L. Raaf, H. J. Yang, M. Sorel, F. Mills, R. H. Nelson, T. L. Hart, Rex Tayloe, Kendall Mahn, E. M. Laird, M. H. Shaevitz, Z. Djurcic, R. B. Patterson, S. K. Linden, E. Hawker, C. C. Polly, W. Marsh, H. Ray, M. Soderberg, D. A. Finley, R. G. Van de Water, D. W. Schmitz, E.J. Prebys, J. A. Nowak, J. A. Green, B. P. Roe, I. Kourbanis, W. C. Louis, Teppei Katori, M. O. Wascko, David Smith, L. Bugel, C. D. Moore, T. Kobilarcik, H. A. Tanaka, B. C. Brown, R. A. Johnson, Alexis A. Aguilar-Arevalo, S. J. Brice, Jun Cao, P. D. Meyers, Jocelyn Monroe, G. B. Mills, F. C. Shoemaker, A. Curioni, M. Sung, G. T. Garvey, S. Ouedraogo, R. Schirato, M. J. Wilking, C. E. Anderson, M. Tzanov, F. G. Garcia, E. D. Zimmerman, Y. L. Liu, P. H. Kasper, and R. Imlay
Subjects: Physics, Research Groups and Centres\Physics\Low Temperature Physics, Nuclear and High Energy Physics, Particle physics, Meson, Faculty of Science\Physics, Astrophysics::High Energy Astrophysical Phenomena, FOS: Physical sciences, High Energy Physics - Experiment, Massless particle, MiniBooNE, Nuclear physics, High Energy Physics - Experiment (hep-ex), Pion, Physics::Accelerator Physics, High Energy Physics::Experiment, Fermilab, Neutrino, Nuclear Experiment, Neutrino oscillation, Lepton
Abstract: The booster neutrino experiment (MiniBooNE) searches for nu(mu)->nu(e) oscillations using the O(1 GeV) neutrino beam produced by the booster synchrotron at the Fermi National Accelerator Laboratory). The booster delivers protons with 8 GeV kinetic energy (8.89 GeV/c momentum) to a beryllium target, producing neutrinos from the decay of secondary particles in the beam line. We describe the Monte Carlo simulation methods used to estimate the flux of neutrinos from the beam line incident on the MiniBooNE detector for both polarities of the focusing horn. The simulation uses the Geant4 framework for propagating particles, accounting for electromagnetic processes and hadronic interactions in the beam line materials, as well as the decay of particles. The absolute double differential cross sections of pion and kaon production in the simulation have been tuned to match external measurements, as have the hadronic cross sections for nucleons and pions. The statistical precision of the flux predictions is enhanced through reweighting and resampling techniques. Systematic errors in the flux estimation have been determined by varying parameters within their uncertainties, accounting for correlations where appropriate., The MiniBooNE collaboration acknowledges support from the Department of Energy and the National Science Foundation of the United States. We are grateful to Fermilab for hosting the experiment and thank the Accelerator Division for the excellent accelerator performance. We thank Los Alamos National Laboratory for LDRD funding. We acknowledge Bartoszek Engineering for the design of the focusing horn. This research was done using resources provided by the Open Science Grid, which is supported by the NSF and DOE-SC. We also acknowledge the use of the LANL PINK cluster and CONDOR software in the analysis of the data.
Published: 2009

39. Unexplained Excess of Electronlike Events from a 1-GeV Neutrino Beam

Author: Y. Liu, D. H. White, G. Karagiorgi, R. H. Nelson, M. J. Wilking, W. Marsh, D. W. Schmitz, C.D. Moore, D. C. Cox, Daniel Finley, R. B. Patterson, Michael H. Shaevitz, Peter Daniel Meyers, G. McGregor, T. Kobilarcik, G. B. Mills, D. Perevalov, B. P. Roe, C. C. Polly, G. P. Zeller, V. T. Nguyen, Haijun Yang, P. Nienaber, R. Imlay, Teppei Katori, S. J. Brice, R. Ford, C. Green, David Smith, I. Kourbanis, H. A. Tanaka, M. O. Wascko, L. Bugel, R. Tayloe, J. A. Green, B. C. Brown, I. Stancu, E. D. Zimmerman, F. C. Shoemaker, Kendall Mahn, A. D. Russell, C. E. Anderson, Janet Conrad, J. L. Raaf, M. Tzanov, F. G. Garcia, R. Schirato, B. T. Fleming, S. K. Linden, R. J. Stefanski, V. D. Sandberg, Alexis A. Aguilar-Arevalo, E.J. Prebys, F. Mills, R. A. Johnson, Jun Cao, M. Sodeberg, M. Sung, Z. Djurcic, G. T. Garvey, T. L. Hart, S. Ouedraogo, M. Sorel, S. Koutsoliotas, E. Laird, A. O. Bazarko, P. H. Kasper, J. M. Link, P. Spentzouris, William C. Louis, E. Hawker, H. Ray, R. G. Van de Water, J. A. Nowak, W. Metcalf, Jocelyn Monroe, A. Curioni, and L. Coney
Subjects: Physics, Particle physics, Scattering, Hadron, Astrophysics (astro-ph), General Physics and Astronomy, FOS: Physical sciences, Astrophysics, High Energy Physics - Experiment, Nuclear physics, MiniBooNE, High Energy Physics - Phenomenology, High Energy Physics - Experiment (hep-ex), High Energy Physics - Phenomenology (hep-ph), Neutrino, Nucleon, Neutrino oscillation, Energy (signal processing), Lepton
Abstract: The MiniBooNE Collaboration observes unexplained electronlike events in the reconstructed neutrino energy range from 200 to 475 MeV. With 6.46 x 10(20) protons on target, 544 electronlike events are observed in this energy range, compared to an expectation of 415.2 +/- 43.4 events, corresponding to an excess of 128.8 +/- 20.4 +/- 38.3 events. The shape of the excess in several kinematic variables is consistent with being due to either nu(e) and (nu) over bar (e) charged-current scattering or nu(mu) neutral-current scattering with a photon in the final state. No significant excess of events is observed in the reconstructed neutrino energy range from 475 to 1250 MeV, where 408 events are observed compared to an expectation of 385.9 +/- 35.7 events., We acknowledge the support of Fermilab, the Department of Energy, and the National Science Foundation, and we acknowledge Los Alamos National Laboratory for LDRD funding. In addition, we acknowledge theoretical input from Tina Leitner and Ulrich Mosel on the Delta -> N gamma background.
Published: 2009

40. Search for Muon Neutrino and Antineutrino Disappearance in MiniBooNE

Author: E. Hawker, W. Metcalf, R. Imlay, R. B. Patterson, H. Ray, M. J. Wilking, R. G. Van de Water, Y. Liu, M. O. Wascko, G. Karagiorgi, J. A. Nowak, I. Stancu, T. Kobilarcik, D. Perevalov, Jun Cao, S. Koutsoliotas, D. W. Schmitz, C. E. Anderson, B. P. Roe, G. P. Zeller, M. Tzanov, F. G. Garcia, F. Mills, B. Osmanov, I. Kourbanis, A. O. Bazarko, Peter Daniel Meyers, A. D. Russell, R. Schirato, P. H. Kasper, E. Laird, Z. Djurcic, Z. Pavlovic, S. J. Brice, H. A. Tanaka, J. A. Green, J. Mousseau, William C. Louis, J. L. Raaf, Jocelyn Monroe, David Smith, L. Bugel, Haijun Yang, V. D. Sandberg, E. D. Zimmerman, Alexis A. Aguilar-Arevalo, R. Tayloe, Janet Conrad, R. A. Johnson, R. Ford, B. C. Brown, C. Green, R. J. Stefanski, J. Grange, M. Sung, G. T. Garvey, Jonathan M. Link, Kendall Mahn, C.D. Moore, D. C. Cox, B. T. Fleming, G. McGregor, S. Ouedraogo, S. K. Linden, G. B. Mills, W. Marsh, T. L. Hart, E.J. Prebys, Daniel Finley, R. H. Nelson, P. Spentzouris, Teppei Katori, M. Sorel, A. Curioni, F. C. Shoemaker, J. Spitz, Michael H. Shaevitz, L. Coney, P. Nienaber, M. Soderberg, C. Mauger, D. H. White, C. C. Polly, and V. T. McGary
Subjects: Physics, Antiparticle, Particle physics, General Physics and Astronomy, FOS: Physical sciences, Elementary particle, High Energy Physics - Experiment, MiniBooNE, Massless particle, Nuclear physics, High Energy Physics - Experiment (hep-ex), Antimatter, Neutrino, Energy (signal processing), Lepton
Abstract: The MiniBooNE Collaboration reports a search for nu(mu) and nu(mu) disappearance in the Delta m(2) region of 0.5-40 eV(2). These measurements are important for constraining models with extra types of neutrinos, extra dimensions, and CPT violation. Fits to the shape of the nu(mu) and nu(mu) energy spectra reveal no evidence for disappearance at the 90% confidence level (C.L.) in either mode. The test of nu(mu) disappearance probes a region below Delta m(2)=40 eV(2) never explored before., We acknowledge the support of Fermilab, the Department of Energy, and the National Science Foundation. We thank Los Alamos National Laboratory for LDRD funding. We also acknowledge the use of Condor software in the analysis the data.
Published: 2009

41. Compatibility of high-Δm2νeandν¯eneutrino oscillation searches

Author: I. Stancu, G. P. Zeller, D. W. Schmitz, David Smith, L. Bugel, Jan Conrad, W. C. Louis, B. C. Brown, G. Karagiorgi, Jun Cao, C. C. Polly, G. B. Mills, P. Nienaber, D. C. Cox, I. Kourbanis, G. McGregor, W. Marsh, S. J. Brice, R. H. Nelson, T. L. Hart, A. O. Bazarko, M. H. Shaevitz, E. D. Zimmerman, R. Ford, P. D. Meyers, C. Green, D. A. Finley, M. Soderberg, S. Koutsoliotas, Y. L. Liu, Panagiotis Spentzouris, Teppei Katori, C. D. Moore, Rex Tayloe, J. A. Green, R. L. Imlay, V. T. Nguyen, D. Perevalov, J. L. Raaf, H. A. Tanaka, Z. Djurcic, H. J. Yang, T. Kobilarcik, P. H. Kasper, A. D. Russell, Kendall Mahn, P. Martin, R. A. Johnson, M. Sorel, C. E. Anderson, M. Tzanov, F. G. Garcia, E. Hawker, R. J. Stefanski, Alexis A. Aguilar-Arevalo, R. Schirato, G. T. Garvey, M. Sung, H. Ray, W. Metcalf, M. J. Wilking, R. G. Van de Water, S. Ouedraogo, F. C. Shoemaker, F. Mills, D. H. White, Jocelyn Monroe, R. B. Patterson, A. Curioni, M. O. Wascko, L. Coney, V. D. Sandberg, J. M. Link, B. P. Roe, E. M. Laird, B. T. Fleming, S. K. Linden, and E.J. Prebys
Subjects: Physics, Nuclear and High Energy Physics, Sterile neutrino, Particle physics, Liquid Scintillator Neutrino Detector, Physics::Instrumentation and Detectors, High Energy Physics::Phenomenology, MiniBooNE, Measurements of neutrino speed, CP violation, High Energy Physics::Experiment, Neutrino, Neutrino oscillation, Lepton
Abstract: This article presents the compatibility of experimental data from neutrino oscillation experiments with a high-{delta}m{sup 2} two-neutrino oscillation hypothesis. Data is provided by the Bugey, Karlsruhe Rutherford Medium Energy Neutrino Experiment 2 (KARMEN2), Los Alamos Liquid Scintillator Neutrino Detector (LSND), and MiniBooNE experiments. The LSND, KARMEN2, and MiniBooNE results are 25.36% compatible within a two-neutrino oscillation hypothesis. However, the point of maximal compatibility is found in a region that is excluded by the Bugey data. A joint analysis of all four experiments, performed in the sin{sup 2}2{theta} vs {delta}m{sup 2} region common to all data, finds a maximal compatibility of 3.94%. This result does not account for additions to the neutrino oscillation model from sources such as CP violation or sterile neutrinos.
Published: 2008

42. The MiniBooNE Detector

Author: David Smith, P. H. Kasper, L. Bugel, H. J. Yang, R. B. Patterson, B. C. Brown, M. O. Wascko, J. A. Green, E. Hawker, H. Ray, D. W. Schmitz, E. D. Zimmerman, W. R. Sands, R. G. Van de Water, J. L. Raaf, G. Karagiorgi, C. D. Moore, D. C. Cox, Y. L. Liu, D. Perevalov, P. Nienaber, H. A. Tanaka, G. McGregor, P. Martin, H. O. Meyer, D. H. White, Jun Cao, G. P. Zeller, J. A. Nowak, Kendall Mahn, B. T. Fleming, C. C. Polly, W. Marsh, E. M. Laird, G. B. Mills, A. Curioni, Peter Daniel Meyers, Z. Djurcic, R. Imlay, R. A. Johnson, B. P. Roe, L. Bartoszek, M. Sung, Janet Conrad, G. T. Garvey, M. Sorel, S. Ouedraogo, Teppei Katori, G. Schofield, R. J. Stefanski, V. D. Sandberg, R. Ford, I. Stancu, C. Green, C. E. Anderson, J. M. Link, M. Tzanov, M. J. Wilking, F. G. Garcia, Panagiotis Spentzouris, I. Kourbanis, D. A. Finley, T. L. Hart, W. Metcalf, M. H. Shaevitz, W. C. Louis, T. Kobilarcik, S. J. Brice, Jocelyn Monroe, R. Schirato, Rex Tayloe, A. D. Russell, Alexis A. Aguilar-Arevalo, F. C. Shoemaker, M. Soderberg, A. O. Bazarko, F. Mills, S. Koutsoliotas, S. K. Linden, V. T. Nguyen, E.J. Prebys, L. Coney, and R. H. Nelson
Subjects: Physics, Nuclear and High Energy Physics, Photomultiplier, Particle physics, Physics - Instrumentation and Detectors, Physics::Instrumentation and Detectors, Detector, FOS: Physical sciences, Instrumentation and Detectors (physics.ins-det), Parameter space, Physics::Data Analysis, Statistics and Probability, High Energy Physics - Experiment, MiniBooNE, Nuclear physics, High Energy Physics - Experiment (hep-ex), Neutrino detector, Calibration, High Energy Physics::Experiment, Neutrino oscillation, Instrumentation, Order of magnitude
Abstract: The MiniBooNE neutrino detector was designed and built to look for muon-neutrino to electron-neutrino oscillations in the mixing parameter space region where the LSND experiment reported a signal. The MiniBooNE experiment used a beam energy and baseline that were an order of magnitude larger than those of LSND so that the backgrounds and systematic errors would be completely different. This paper provides a detailed description of the design, function, and performance of the MiniBooNE detector., 46 pages, 21 figures
Published: 2008

43. An improved Neutrino Oscillations Analysis of the MiniBooNE Data

Author: Alexis A. Aguilar-Arevalo
Subjects: Nuclear physics, MiniBooNE, Physics, Particle physics, Sensitivity (control systems), Parameter space, Type (model theory), Neutrino, Neutrino oscillation, Particle identification, Energy (signal processing)
Abstract: We calculate the exclusion region in the parameter space of {nu}{sub {mu}} {yields} {nu}{sub e} oscillations of the LSND type using a combined fit to the reconstructed energy distributions of neutrino candidate samples from the MiniBooNE data obtained with two different particle identification methods. The two {nu}{sub e} candidate samples are included together with a high statistics sample of {nu}{sub {mu}} events in the definition of a {chi}{sup 2} statistic which includes the correlations between the energy intervals of all three samples and handles the event overlap between the {nu}{sub e} samples. The {nu}{sub {mu}} sample is introduced to constrain the effect of systematic uncertainties. This analysis increases the exclusion limit in the region {Delta}m{sup 2} {approx}< 1eV{sup 2} when compared with the result previously published by the collaboration, which used a different technique.
Published: 2008

44. Search for Electron Neutrino Appearance at theΔm2∼1 eV2Scale

Author: G. P. Zeller, C. D. Moore, H. A. Tanaka, E. M. Laird, P. H. Kasper, E. D. Zimmerman, R. L. Imlay, P. Nienaber, Y. L. Liu, P. Martin, M. Tzanov, D. C. Cox, G. McGregor, J. A. Green, F. G. Garcia, E. Hawker, D. W. Schmitz, D. Perevalov, J. L. Raaf, S. J. Brice, Jan Conrad, I. Stancu, R. H. Nelson, R. A. Johnson, B. T. Fleming, Kendall Mahn, F. C. Shoemaker, E.J. Prebys, C. C. Polly, W. Marsh, A. O. Bazarko, F. Mills, T. L. Hart, S. Koutsoliotas, David Smith, L. Bugel, I. Kourbanis, Panagiotis Spentzouris, M. H. Shaevitz, B. C. Brown, D. A. Finley, Teppei Katori, R. Ford, C. Green, Jun Cao, R. J. Stefanski, Rex Tayloe, T. Kobilarcik, M. J. Wilking, G. B. Mills, Z. Djurcic, M. Sung, S. Ouedraogo, A. Curioni, B. P. Roe, W. C. Louis, L. Coney, V. D. Sandberg, J. M. Link, P. D. Meyers, R. Schirato, G. T. Garvey, H. J. Yang, M. Sorel, H. Ray, R. G. Van de Water, W. Metcalf, Jocelyn Monroe, A. D. Russell, D. H. White, R. B. Patterson, M. O. Wascko, and Alexis A. Aguilar-Arevalo
Subjects: Physics, Nuclear physics, MiniBooNE, Particle physics, Neutrino detector, Solar neutrino, General Physics and Astronomy, Measurements of neutrino speed, High Energy Physics::Experiment, Neutrino, Solar neutrino problem, Neutrino oscillation, Lepton
Abstract: The MiniBooNE Collaboration reports first results of a search for {nu}{sub e} appearance in a {nu}{sub {mu}} beam. With two largely independent analyses, we observe no significant excess of events above the background for reconstructed neutrino energies above 475 MeV. The data are consistent with no oscillations within a two-neutrino appearance-only oscillation model.
Published: 2007

45. Measurement of Muon Neutrino Quasi-Elastic Scattering on Carbon

Author: A. A. Aguilar-Arevalo, A. O. Bazarko, S. J. Brice, B. C. Brown, L. Bugel, J. Cao, L. Coney, J. M. Conrad, D. C. Cox, A. Curioni, Z. Djurcic, D. A. Finley, B. T. Fleming, R. Ford, F. G. Garcia, G. T. Garvey, C. Green, J. A. Green, T. L. Hart, E. Hawker, R. Imlay, R. A. Johnson, P. Kasper, T. Katori, T. Kobilarcik, I. Kourbanis, S. Koutsoliotas, E. M. Laird, J. M. Link, Y. Liu, W. C. Louis, K. B. M. Mahn, W. Marsh, P. S. Martin, G. McGregor, W. Metcalf, P. D. Meyers, F. Mills, G. B. Mills, J. Monroe, C. D. Moore, R. H. Nelson, P. Nienaber, S. Ouedraogo, R. B. Patterson, D. Perevalov, C. C. Polly, E. Prebys, J. L. Raaf, H. Ray, B. P. Roe, A. D. Russell, V. Sandberg, R. Schirato, D. Schmitz, M. H. Shaevitz, F. C. Shoemaker, D. Smith, M. Sorel, P. Spentzouris, I. Stancu, R. J. Stefanski, M. Sung, H. A. Tanaka, R. Tayloe, M. Tzanov, R. Van de Water, M. O. Wascko, D. H. White, M. J. Wilking, H. J. Yang, G. P. Zeller, and E. D. Zimmerman
Subjects: Physics, Particle physics, General Physics and Astronomy, FOS: Physical sciences, High Energy Physics - Experiment, Nuclear physics, MiniBooNE, High Energy Physics - Experiment (hep-ex), Muon neutrino, High Energy Physics::Experiment, Fermilab, Neutrino, Nuclear Experiment (nucl-ex), Nucleon, Neutrino oscillation, Nuclear Experiment, Charged current, Lepton
Abstract: The observation of neutrino oscillations is clear evidence for physics beyond the standard model. To make precise measurements of this phenomenon, neutrino oscillation experiments, including MiniBooNE, require an accurate description of neutrino charged current quasi-elastic (CCQE) cross sections to predict signal samples. Using a high-statistics sample of muon neutrino CCQE events, MiniBooNE finds that a simple Fermi gas model, with appropriate adjustments, accurately characterizes the CCQE events observed in a carbon-based detector. The extracted parameters include an effective axial mass, M_A^eff = 1.23+/-0.20 GeV, that describes the four-momentum dependence of the axial-vector form factor of the nucleon; and a Pauli-suppression parameter, kappa = 1.019+/-0.011. Such a modified Fermi gas model may also be used by future accelerator-based experiments measuring neutrino oscillations on nuclear targets., 5 pages, 3 figures
Published: 2007

46. LeptonicCPviolation studies at MiniBooNE in the (3+2) sterile neutrino oscillation hypothesis

Author: G. Karagiorgi, Alexis A. Aguilar-Arevalo, Vernon Barger, Kerry Whisnant, Jan Conrad, Michael H. Shaevitz, and M. Sorel
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, Sterile neutrino, 010308 nuclear & particles physics, Oscillation, Null (mathematics), Phase (waves), 01 natural sciences, Nuclear physics, MiniBooNE, 0103 physical sciences, CP violation, Neutrino, 010306 general physics, Neutrino oscillation
Abstract: We investigate the extent to which leptonic $CP$-violation in ($3+2$) sterile neutrino models leads to different oscillation probabilities for ${\overline{\ensuremath{\nu}}}_{\ensuremath{\mu}}\ensuremath{\rightarrow}{\overline{\ensuremath{\nu}}}_{e}$ and ${\ensuremath{\nu}}_{\ensuremath{\mu}}\ensuremath{\rightarrow}{\ensuremath{\nu}}_{e}$ oscillations at MiniBooNE. We are using a combined analysis of short-baseline (SBL) oscillation results, including the LSND and null SBL results, to which we impose additional constraints from atmospheric oscillation data. We obtain the favored regions in MiniBooNE oscillation probability space for both ($3+2$) $CP$-conserving and ($3+2$) $CP$-violating models. We further investigate the allowed $CP$-violation phase values and the MiniBooNE reach for such a $CP$ violation measurement. The analysis shows that the oscillation probabilities in MiniBooNE neutrino and antineutrino running modes can differ significantly, with the latter possibly being as much as 3 times larger than the first. In addition, we also show that all possible values of the single $CP$-violation phase measurable at short baselines in ($3+2$) models are allowed within 99% CL by existing data.
Published: 2007

47. Neutrinos from the NuMI beamline in the MiniBooNE detector

Author: Alexis A. Aguilar-Arevalo
Subjects: Physics, ICARUS, Particle physics, Physics::Instrumentation and Detectors, Solar neutrino, Physics::Data Analysis, Statistics and Probability, NuMI, Nuclear physics, MiniBooNE, Neutrino detector, Physics::Accelerator Physics, Measurements of neutrino speed, High Energy Physics::Experiment, Neutrino astronomy, Neutrino oscillation
Abstract: With the startup of the NuMI beamline early in 2005, the MiniBooNE detector has the unique opportunity to be the first user of an off‐axis neutrino beam (110 mrad off‐axis). MiniBooNE is assembling a rich sample of neutrino interactions from this source.
Published: 2006

48. Bringing the SciBar detector to the booster neutrino beam

Author: Janet Conrad, G. Jover, U Columbia, T. Kobilarcik, Rome Infn, U. Dore, L. Bugel, A. Cervera, Elena Couce, B. C. Brown, Y. Kurimoto, Tsukuba Kek, Katsuki Hiraide, Ific Valencia U., S. J. Brice, U Rome, J. J. Gomez-Cadenas, Y. Kurosawa, Stratton Mountain Sch., Ifae Barcelona, U Kyoto, Icrr TokyoU., X. Espinal, T. Ishii, Yoshinari Hayato, J. Catala, J. Alcaraz, S. Andringa, Alexis A. Aguilar-Arevalo, and U Colorado
Subjects: Nuclear physics, MiniBooNE, Physics, Particle physics, Neutral current, Detector, T2K experiment, Fermilab, Neutrino, Neutrino oscillation, Charged current
Abstract: This document presents the physics case for bringing SciBar, the fully active, finely segmented tracking detector at KEK, to the FNAL Booster Neutrino Beam (BNB) line. This unique opportunity arose with the termination of K2K beam operations in 2005. At that time, the SciBar detector became available for use in other neutrino beam lines, including the BNB, which has been providing neutrinos to the MiniBooNE experiment since late 2002. The physics that can be done with SciBar/BNB can be put into three categories, each involving several measurements. First are neutrino cross section measurements which are interesting in their own right, including analyses of multi-particle final states, with unprecedented statistics. Second are measurements of processes that represent the signal and primary background channels for the upcoming T2K experiment. Third are measurements which improve existing or planned MiniBooNE analyses and the understanding of the BNB, both in neutrino and antineutrino mode. For each of these proposed measurements, the SciBar/BNB combination presents a unique opportunity or will significantly improve upon current or near-future experiments for several reasons. First, the fine granularity of SciBar allows detailed reconstruction of final states not possible with the MiniBooNE detector. Additionally, the BNB neutrino energy spectrum is amore » close match to the expected T2K energy spectrum in a region where cross sections are expected to vary dramatically with energy. As a result, the SciBar/BNB combination will provide cross-section measurements in an energy range complementary to MINERvA and complete the knowledge of neutrino cross sections over the entire energy range of interest to the upcoming off-axis experiments.« less
Published: 2005

49. Magnus Expansion and Three-Neutrino Oscillations in Matter

Author: Alexis A. Aguilar-Arevalo, Juan Carlos D'Olivo, and Luis G. Cabral-Rosetti
Subjects: Physics, History, Particle physics, Electron density, Solar neutrino, Operator (physics), FOS: Physical sciences, Parameter space, Computer Science Applications, Education, High Energy Physics - Phenomenology, High Energy Physics - Phenomenology (hep-ph), Magnus expansion, Neutrino, Neutrino oscillation, Eigenvalues and eigenvectors
Abstract: We present a semi-analytical derivation of the survival probability of solar neutrinos in the three generation scheme, based on the Magnus approximation of the evolution operator of a three level system, and assuming a mass hierarchy among neutrino mass eigenstates. We have used an exponential profile for the solar electron density in our approximation. The different interesting density regions that appear throughout the propagation are analyzed. Finally, some comments on the allowed regions in the solar neutrino parameter space are addressed., Comment: RevTex4 style, 5 pages including 5 figures. Presented at Mexican School of Astrophysics 2002, Guanajuato, Mexico, 31 Jul - 7 Aug 2002. Final version to appear in the Proceedings of IX Mexican Workshop on Particles and Fields Physics Beyond the Standard Model, Colima Col. Mexico, November 17-22, 2003
Published: 2003
Full Text: View/download PDF

50. An analytical treatment for three neutrino oscillations in the Earth

Author: J.C. DʼOlivo, Alexis A. Aguilar-Arevalo, and A.D. Supanitsky
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, Operator (physics), High Energy Physics::Phenomenology, Elementary particle, Atomic and Molecular Physics, and Optics, Massless particle, Magnus expansion, Measurements of neutrino speed, High Energy Physics::Experiment, Neutrino, Neutrino oscillation, Lepton
Abstract: A simple, and at the same time accurate, description of the Earth matter effects on the oscillations between three neutrino flavors is given in terms of the Magnus expansion for the evolution operator.
Published: 2012

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