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arXiv · 1109.3480

Test of Lorentz and CPT violation with Short Baseline Neutrino Oscillation Excesses

The MiniBooNE Collaboration·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·W. Huelsnitz·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·E. D. Zimmerman
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Abstract

The sidereal time dependence of MiniBooNE electron neutrino and anti-electron neutrino appearance data are analyzed to search for evidence of Lorentz and CPT violation. An unbinned Kolmogorov-Smirnov test shows both the electron neutrino and anti-electron neutrino 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 electron neutrino appearance data prefer a sidereal time-independent solution, and the anti-electron neutrino appearance data slightly prefer a sidereal time-dependent solution. Limits of order 10E-20 GeV are placed on combinations of SME coefficients. These limits give the best limits on certain SME coefficients for muon neutrino to electron neutrino and anti-muon neutrino to anti-electron neutrino oscillations. The fit values and limits of combinations of SME coefficients are provided.

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The MiniBooNE Collaboration, 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, W. Huelsnitz, 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, E. D. Zimmerman. 2011-09-15. Test of Lorentz and CPT violation with Short Baseline Neutrino Oscillation Excesses. https://doi.org/10.1016/j.physletb.2012.12.020

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