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1. Interleukin 4 induces rapid mucin transport, increases mucus thickness and quality and decreases colitis and Citrobacter rodentium in contact with epithelial cells

Author

S. Sharba, N. Navabi, M. Padra, J. A. Persson, M. P. Quintana-Hayashi, J. K. Gustafsson, L. Szeponik, V. Venkatakrishnan, Å. Sjöling, S. Nilsson, M. Quiding-Järbrink, M. E. V. Johansson, and S. K. Linden

Subjects
mucin, mucus, mucosa, citrobacter rodentium, a/e pathogen, cytokine, il-4, ifn-γ, colitis, host-pathogen interaction, Infectious and parasitic diseases, RC109-216
Abstract

Citrobacter rodentium infection is a murine model for pathogenic intestinal Escherichia coli infection. C. rodentium infection causes an initial decrease in mucus layer thickness, followed by an increase during clearance. We aimed to identify the cause of these changes and to utilize this naturally occurring mucus stimulus to decrease pathogen impact and inflammation. We identified that mucin production and speed of transport from Golgi to secretory vesicles at the apical surface increased concomitantly with increased mucus thickness. Of the cytokines differentially expressed during increased mucus thickness, IFN-γ and TNF-α decreased the mucin production and transport speed, whereas IL-4, IL-13, C. rodentium and E. coli enhanced these aspects. IFN-γ and TNF-α treatment in combination with C. rodentium and pathogenic E. coli infection negatively affected mucus parameters in vitro, which was relieved by IL-4 treatment. The effect of IL-4 was more pronounced than that of IL-13, and in wild type mice, only IL-4 was present. Increased expression of Il-4, Il-4-receptor α, Stat6 and Spdef during clearance indicate that this pathway contributes to the increase in mucin production. In vivo IL-4 administration initiated 10 days after infection increased mucus thickness and quality and decreased colitis and pathogen contact with the epithelium. Thus, during clearance of infection, the concomitant increase in IL-4 protects and maintains goblet cell function against the increasing levels of TNF-α and IFN-γ. Furthermore, IL-4 affects intestinal mucus production, pathogen contact with the epithelium and colitis. IL-4 treatment may thus have therapeutic benefits for mucosal healing.

Published
2019
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2. Formyl peptide receptor 2 orchestrates mucosal protection against Citrobacter rodentium infection

Author

S. Sharba, V. Venkatakrishnan, M. Padra, M. Winther, M. Gabl, M. Sundqvist, J. Wang, H. Forsman, and S. K. Linden

Subjects
mucin, mucus, citrobacter rodentium, enteropathogenic escherichia coli, fpr2, colitis, Infectious and parasitic diseases, RC109-216
Abstract

Citrobacter rodentium is an attaching and effacing intestinal murine pathogen which shares similar virulence strategies with the human pathogens enteropathogenic- and enterohemorrhagic Escherichia coli to infect their host. C. rodentium is spontaneously cleared by healthy wild-type (WT) mice whereas mice lacking Muc2 or specific immune regulatory genes demonstrate an impaired ability to combat the pathogen. Here we demonstrate that apical formyl peptide receptor 2 (Fpr2) expression increases in colonic epithelial cells during C. rodentium infection. Using a conventional inoculum dose of C. rodentium, both WT and Fpr2−/− mice were infected and displayed similar signs of disease, although Fpr2−/− mice recovered more slowly than WT mice. However, Fpr2−/− mice exhibited increased susceptibility to C. rodentium colonization in response to low dose infection: 100% of the Fpr2−/− and 30% of the WT mice became colonized and Fpr2−/− mice developed more severe colitis and more C. rodentium were in contact with the colonic epithelial cells. In line with the larger amount of C. rodentium detected in the spleen in Fpr2−/− mice, more C. rodentium and enteropathogenic Escherichia coli translocated across an in vitro mucosal surface to the basolateral compartment following FPR2 inhibitor treatment. Fpr2−/− mice also lacked the striated inner mucus layer that was present in WT mice. Fpr2−/− mice had decreased mucus production and different mucin O-glycosylation in the colon compared to WT mice, which may contribute to their defect inner mucus layer. Thus, Fpr2 contributes to protection against infection and influence mucus production, secretion and organization.

Published
2019
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3. Update on the MiniCLEAN Dark Matter Experiment

Author

E. Grace, Daniel McKinsey, R. Bourque, Jeff Griego, Jocelyn Monroe, S. Jaditz, I. T. Lawson, B. Wang, Y. Chen, Joseph A. Formaggio, Kevin J. Coakley, F. Giuliani, G. D. Orebi Gann, J. R. Klein, C. Kachulis, S. Seibert, E. Kearns, S. MacMullin, B. Buck, Keith Rielage, G. Perumpilly, John A. Oertel, K. J. Palladino, V. E. Guiseppe, A. LaTorre, Chao Zhang, E. Flores, J. Kelsey, J. Walding, M. Akashi-Ronquest, Natalia Guerrero, A. Hime, James Nikkel, M. Bodmer, Reyco Henning, A. Mastbaum, A. Butcher, J. Wang, Dongming Mei, T. Caldwell, S. K. Linden, D. Gastler, L. Rodriguez, Michael Gold, F. E. Lopez, R. W. Schnee, Massachusetts Institute of Technology. Department of Physics, MIT Kavli Institute for Astrophysics and Space Research, Buck, Benjamin R., Formaggio, Joseph A, Kelsey, James E, and Guerrero, Natalia M.

Subjects
Photomultiplier, Physics - Instrumentation and Detectors, WIMP, Physics::Instrumentation and Detectors, Dark matter, chemistry.chemical_element, FOS: Physical sciences, Physics and Astronomy(all), dark matter, High Energy Physics - Experiment, Nuclear physics, Neon, High Energy Physics - Experiment (hep-ex), Recoil, Instrumentation and Methods for Astrophysics (astro-ph.IM), Physics, Scintillation, Argon, scintillation, Detector, liquid neon, Instrumentation and Detectors (physics.ins-det), liquid argon, chemistry, solar neutrinos, Astrophysics - Instrumentation and Methods for Astrophysics
Abstract

The direct search for dark matter is entering a period of increased sensitivity to the hypothetical Weakly Interacting Massive Particle (WIMP). One such technology that is being examined is a scintillation only noble liquid experiment, MiniCLEAN. MiniCLEAN utilizes over 500 kg of liquid cryogen to detect nuclear recoils from WIMP dark matter and serves as a demonstration for a future detector of order 50 to 100 tonnes. The liquid cryogen is interchangeable between argon and neon to study the A2 dependence of the potential signal and examine backgrounds. MiniCLEAN utilizes a unique modular design with spherical geometry to maximize the light yield using cold photomultiplier tubes in a single-phase detector. Pulse shape discrimination techniques are used to separate nuclear recoil signals from electron recoil backgrounds. MiniCLEAN will be spiked with additional 39Ar to demonstrate the effective reach of the pulse shape discrimination capability. Assembly of the experiment is underway at SNOLAB and an update on the project is given., Los Alamos National Laboratory, United States. Department of Energy. Office of Science, National Science Foundation (U.S.), National Institute of Standards and Technology (U.S.)

Published
2015
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4. 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

5. Analysis of a large sample of neutrino- induced muons with the ArgoNeuT detector

Author

M. Soderberg, E. Klein, S. Farooq, R. Guenette, F. Cavanna, C. E. Anderson, Ornella Palamara, D. Edmunds, Biagio Rossi, C. Bromberg, G. A. Horton-Smith, E. Church, B. Rebel, Karol Lang, B. Baller, G. Rameika, Marc Weber, T. Bolton, A. M. Szelc, R. Mehdiyev, S. Haug, T. Yang, J. Spitz, G. P. Zeller, D. McKee, P. Laurens, C. James, Antonio Ereditato, B. Page, M. Antonello, B. T. Fleming, S. K. Linden, H. Greenlee, and K. Partyka

Subjects
Physics, ionization two-phase), Time projection chamber, Muon, Physics - Instrumentation and Detectors, Physics::Instrumentation and Detectors, Detector, Time projection Chambers (TPC), Data analysis, FOS: Physical sciences, Instrumentation and Detectors (physics.ins-det), Noble-liquid detectors (scintillation, ionization two-phase), NuMI, High Energy Physics - Experiment, Nuclear physics, High Energy Physics - Experiment (hep-ex), Beamline, MINOS, Noble-liquid detectors (scintillation, Physics::Accelerator Physics, High Energy Physics::Experiment, Neutrino, Instrumentation, Mathematical Physics, Fermi Gamma-ray Space Telescope
Abstract

ArgoNeuT, or Argon Neutrino Test, is a 170 liter liquid argon time projection chamber designed to collect neutrino interactions from the NuMI beam at Fermi National Accelerator Laboratory. ArgoNeuT operated in the NuMI low-energy beam line directly upstream of the MINOS Near Detector from September 2009 to February 2010, during which thousands of neutrino and antineutrino events were collected. The MINOS Near Detector was used to measure muons downstream of ArgoNeuT. Though ArgoNeuT is primarily an R&D project, the data collected provide a unique opportunity to measure neutrino cross sections in the 0.1-10 GeV energy range. Fully reconstructing the muon from these interactions is imperative for these measurements. This paper focuses on the complete kinematic reconstruction of neutrino-induced through-going muons tracks. Analysis of this high statistics sample of minimum ionizing tracks demonstrates the reliability of the geometric and calorimetric reconstruction in the ArgoNeuT detector.

Published
2012

6. The ArgoNeuT detector in the NuMI low-energy beam line at Fermilab

Author

T. Wongjirad, B. Page, S. K. Linden, E. Church, M. Weber, T. A. Bolton, G. A. Horton-Smith, C. E. Anderson, D. McKee, R. Guenette, Karol Lang, T. Yang, M. Soderberg, G. Rameika, B. T. Fleming, Biagio Rossi, F. Cavanna, E. Klein, Sigve Haug, A. M. Szelc, S. Farooq, J. Spitz, P. Laurens, C. W. James, R. Mehdiyev, B. Rebel, O. Palamara, B. Baller, A. Lathrop, R. Sanders, Antonio Ereditato, M. Antonello, H. Greenlee, C. Bromberg, G. P. Zeller, S. Pordes, D. Edmunds, and K. Partyka

Subjects
ionization two-phase), Physics, Time projection chamber, Muon, Physics - Instrumentation and Detectors, Physics::Instrumentation and Detectors, 530 Physics, Time projection Chambers (TPC), Detector, Data analysis, FOS: Physical sciences, Instrumentation and Detectors (physics.ins-det), NuMI, High Energy Physics - Experiment, Nuclear physics, High Energy Physics - Experiment (hep-ex), Beamline, Noble-liquid detectors (scintillation, ionization two-phase), Noble-liquid detectors (scintillation, Ionization, High Energy Physics::Experiment, Fermilab, Neutrino, Instrumentation, Mathematical Physics
Abstract

The ArgoNeuT liquid argon time projection chamber has collected thousands of neutrino and antineutrino events during an extended run period in the NuMI beam-line at Fermilab. This paper focuses on the main aspects of the detector layout and related technical features, including the cryogenic equipment, time projection chamber, read-out electronics, and off-line data treatment. The detector commissioning phase, physics run, and first neutrino event displays are also reported. The characterization of the main working parameters of the detector during data-taking, the ionization electron drift velocity and lifetime in liquid argon, as obtained from through-going muon data complete the present report., 43 pages, 27 figures, 5 tables - update reference

Published
2012

7. 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

8. 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

9. 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

10. 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

11. 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

12. Event excess in the MiniBooNE search for ¯νμ→¯νe oscillations

Author

A A, Aguilar-Arevalo, C E, Anderson, S J, Brice, B C, Brown, L, Bugel, J M, Conrad, R, Dharmapalan, Z, Djurcic, B T, Fleming, R, Ford, F G, Garcia, G T, Garvey, J, Mirabal, J, Grange, J A, Green, R, Imlay, R A, Johnson, G, Karagiorgi, T, Katori, T, Kobilarcik, S K, Linden, W C, Louis, K B M, Mahn, W, Marsh, C, Mauger, W, Metcalf, G B, Mills, C D, Moore, J, Mousseau, R H, Nelson, V, Nguyen, P, Nienaber, J A, Nowak, B, Osmanov, Z, Pavlovic, D, Perevalov, C C, Polly, H, Ray, B P, Roe, A D, Russell, R, Schirato, M H, Shaevitz, M, Sorel, J, Spitz, I, Stancu, R J, Stefanski, R, Tayloe, M, Tzanov, R G, Van de Water, M O, Wascko, D H, White, M J, Wilking, G P, Zeller, and E D, Zimmerman

Abstract

The MiniBooNE experiment at Fermilab reports results from a search for ¯ν_{μ}→¯ν_{e} oscillations, using a data sample corresponding to 5.66×10²⁰ protons on target. An excess of 20.9±14.0 events is observed in the energy range 475E_{ν}^{QE}1250 MeV, which, when constrained by the observed ¯ν_{μ} events, has a probability for consistency with the background-only hypothesis of 0.5%. On the other hand, fitting for ¯ν_{μ}→¯ν_{e} oscillations, the best-fit point has a χ² probability of 8.7%. The data are consistent with ¯ν_{μ}→¯ν_{e} oscillations in the 0.1 to 1.0 eV² Δm² range and with the evidence for antineutrino oscillations from the Liquid Scintillator Neutrino Detector at Los Alamos National Laboratory.

Published
2010

13. 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

14. 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

15. Search for Core-Collapse Supernovae using the MiniBooNE Neutrino Detector

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, M. Fisher, 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. G. Van de Water, M. O. Wascko, D. H. White, M. J. Wilking, H. J. Yang, G. P. Zeller, and E. D. Zimmerman

Subjects
High Energy Astrophysical Phenomena (astro-ph.HE), Physics, Nuclear and High Energy Physics, Research Groups and Centres\Physics\Low Temperature Physics, Faculty of Science\Physics, Milky Way, Astrophysics::High Energy Astrophysical Phenomena, FOS: Physical sciences, Astronomy, Astrophysics, Astrophysics::Cosmology and Extragalactic Astrophysics, Galaxy, MiniBooNE, Supernova, Neutrino detector, Gravitational collapse, High Energy Physics::Experiment, Variable star, Neutrino, Astrophysics - High Energy Astrophysical Phenomena, Astrophysics::Galaxy Astrophysics
Abstract

We present a search for core-collapse supernovae in the Milky Way galaxy, using the MiniBooNE neutrino detector. No evidence is found for core-collapse supernovae occurring in our Galaxy in the period from December 14, 2004 to July 31, 2008, corresponding to 98% live time for collection. We set a limit on the core-collapse supernova rate out to a distance of 13.4 kpc to be less than 0.69 supernovae per year at 90% C. L., We acknowledge the support of Fermilab, the Department of Energy, and the National Science Foundation. We are grateful to John Beacom for his valuable insight and advice. We thank Alessandro Mirizzi, Georg G. Raffelt, and Pasquale D. Serpico for providing the probability distribution for the Milky Way.

Published
2010

16. 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

17. 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

18. 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

19. 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

20. Search for electron antineutrino appearance at the deltam(2) approximately 1 eV(2) Scale

Author

A A, Aguilar-Arevalo, C E, Anderson, S J, Brice, B C, Brown, L, Bugel, J M, Conrad, Z, Djurcic, B T, Fleming, R, Ford, F G, Garcia, G T, Garvey, J, Gonzales, J, Grange, C, Green, J A, Green, R, Imlay, R A, Johnson, G, Karagiorgi, T, Katori, T, Kobilarcik, S K, Linden, W C, Louis, K B M, Mahn, W, Marsh, C, Mauger, V T, McGary, W, Metcalf, G B, Mills, C D, Moore, J, Mousseau, R H, Nelson, P, Nienaber, J A, Nowak, B, Osmanov, Z, Pavlovic, D, Perevalov, C C, Polly, H, Ray, B P, Roe, A D, Russell, M H, Shaevitz, M, Sorel, J, Spitz, I, Stancu, R J, Stefanski, R, Tayloe, M, Tzanov, R G, Van de Water, M O, Wascko, D H, White, M J, Wilking, G P, Zeller, and E D, Zimmerman

Abstract

The MiniBooNE Collaboration reports initial results from a search for nu(mu)--nu(e) oscillations. A signal-blind analysis was performed using a data sample corresponding to 3.39x10(20) protons on target. The data are consistent with background prediction across the full range of neutrino energy reconstructed assuming quasielastic scattering, 200E(nu)(QE)3000 MeV: 144 electronlike events have been observed in this energy range, compared to an expectation of 139.2+/-17.6 events. No significant excess of events has been observed, both at low energy, 200-475 MeV, and at high energy, 475-1250 MeV. The data are inconclusive with respect to antineutrino oscillations suggested by data from the Liquid Scintillator Neutrino Detector at Los Alamos National Laboratory.

Published
2009

21. 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

22. 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

23. Measurement of numicro and nue events in an off-axis horn-focused neutrino beam

Author

P, Adamson, A A, Aguilar-Arevalo, C E, Anderson, A O, Bazarko, M, Bishai, S J, Brice, B C, Brown, L, Bugel, J, Cao, B C, Choudhary, L, Coney, J M, Conrad, D C, Cox, A, Curioni, Z, Djurcic, D A, Finley, B T, Fleming, R, Ford, H R, Gallagher, F G, Garcia, G T, Garvey, C, Green, J A, Green, D, Harris, T L, Hart, E, Hawker, J, Hylen, R, Imlay, R A, Johnson, G, Karagiorgi, P, Kasper, T, Katori, T, Kobilarcik, S, Kopp, I, Kourbanis, S, Koutsoliotas, E M, Laird, S K, Linden, J M, Link, Y, Liu, L, Loiacono, W C, Louis, A, Marchionni, K B M, Mahn, W, Marsh, G, McGregor, M D, Messier, W, Metcalf, P D, Meyers, F, Mills, G B, Mills, J, Monroe, C D, Moore, J K, Nelson, R H, Nelson, V T, Nguyen, P, Nienaber, J A, Nowak, 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, W, Smart, D, Smith, M, Sodeberg, M, Sorel, P, Spentzouris, I, Stancu, R J, Stefanski, M, Sung, H A, Tanaka, R, Tayloe, M, Tzanov, P, Vahle, R, Van de Water, B, Viren, M O, Wascko, D H, White, M J, Wilking, H J, Yang, F X, Yumiceva, G P, Zeller, E D, Zimmerman, and R, Zwaska

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 degrees) with respect to the NuMI beam axis. Samples of charged-current quasielastic numicro and nue 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
2008

24. 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

25. 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

26. Test of Lorentz and CPT violation with short baseline neutrino oscillation excesses

Author

G. P. Zeller, W. Metcalf, B. T. Fleming, S. K. Linden, L. Bugel, E.J. Prebys, M. Soderberg, D. Perevalov, J. A. Green, Alexis A. Aguilar-Arevalo, D. H. White, J. Spitz, R. Imlay, B. Osmanov, J. L. Raaf, G. Karagiorgi, M. Sorel, R. Dharmapalan, R. Schirato, J. Mousseau, P. Nienaber, Jocelyn Monroe, C. D. Moore, S. Koutsoliotas, C. E. Anderson, D. W. Schmitz, E. M. Laird, H. A. Tanaka, F. G. Garcia, Zelimir Djurcic, C. C. Polly, T. L. Hart, R. A. Johnson, E. D. Zimmerman, J. Grange, Y. L. Liu, M. H. Shaevitz, R. Ford, A. D. Russell, H. J. Yang, M. Tzanov, L. Coney, Panagiotis Spentzouris, R. B. Patterson, Z. Pavlovic, I. Kourbanis, Jun Cao, Kendall Mahn, Janet Conrad, P. H. Kasper, A. Curioni, M. Sung, M. O. Wascko, W. Marsh, D. A. Finley, G. T. Garvey, F. Mills, S. Ouedraogo, R. J. Stefanski, S. J. Brice, G. B. Mills, Teppei Katori, E. Hawker, H. Ray, A. O. Bazarko, R. G. Van de Water, J. A. Nowak, D. C. Cox, G. McGregor, W. C. Louis, W. Huelsnitz, David Smith, C. Mauger, B. C. Brown, V. T. McGary, P. D. Meyers, C. Green, R. H. Nelson, B. P. Roe, I. Stancu, V. D. Sandberg, J. M. Link, Rex Tayloe, T. Kobilarcik, M. J. Wilking, F. C. Shoemaker, Massachusetts Institute of Technology. Department of Physics, Massachusetts Institute of Technology. Laboratory for Nuclear Science, Bugel, Leonard G., Conrad, Janet, Karagiorgi, Georgia Stelios, Katori, Teppei, and McGary, Van Thanh

Subjects
Particle physics, Nuclear and High Energy Physics, Neutrino oscillation, Physics::Instrumentation and Detectors, Lorentz transformation, Astrophysics::High Energy Astrophysical Phenomena, FOS: Physical sciences, MiniBooNE, Partícules (Física nuclear), High Energy Physics - Experiment, Nuclear physics, symbols.namesake, High Energy Physics - Experiment (hep-ex), High Energy Physics - Phenomenology (hep-ph), Violació CP (Física nuclear), Standard-Model Extension, Statistical analysis, Physics, Oscillation, Null (mathematics), High Energy Physics::Phenomenology, Lorentz violation, High Energy Physics - Phenomenology, Sidereal time, symbols, High Energy Physics::Experiment
Abstract

The sidereal time dependence of MiniBooNE ν[subscript e] and ν[over-bar][subscript e] appearance data is analyzed to search for evidence of Lorentz and CPT violation. An unbinned Kolmogorov–Smirnov (K–S) test shows both the ν[subscript e] and ν[over-bar][subscript e] appearance data are compatible with the null sidereal variation hypothesis to more than 5%. Using an unbinned likelihood fit with a Lorentz-violating oscillation model derived from the Standard Model Extension (SME) to describe any excess events over background, we find that the ν[subscript e] appearance data prefer a sidereal time-independent solution, and the ν[over-bar][subscript e] appearance data slightly prefer a sidereal time-dependent solution. Limits of order 10−20 GeV10−20 GeV are placed on combinations of SME coefficients. These limits give the best limits on certain SME coefficients for ν[subscript μ] →ν[subscript e] and ν[over-bar][subscript μ]→ν[over-bar][subscript e] oscillations. The fit values and limits of combinations of SME coefficients are provided., Fermi National Accelerator Laboratory, United States. Dept. of Energy, National Science Foundation (U.S.), Indiana University, Bloomington. Center for Spacetime Symmetries

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