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

Autor: The MiniBooNE Collaboration, Aguilar-Arevalo, A. A., Anderson, C. E., Bazarko, A. O., Brice, S. J., Brown, B. C., Bugel, L., Cao, J., Coney, L., Conrad, J. M., Cox, D. C., Curioni, A., Dharmapalan, R., Djurcic, Z., Finley, D. A., Fleming, B. T., Ford, R., Garcia, F. G., Garvey, G. T., Grange, J., Green, C., Green, J. A., Hart, T. L., Hawker, E., Huelsnitz, W., Imlay, R., Johnson, R. A., Karagiorgi, G., Kasper, P., Katori, T., Kobilarcik, T., Kourbanis, I., Koutsoliotas, S., Laird, E. M., Linden, S. K., Link, J. M., Liu, Y., Louis, W. C., Mahn, K. B. M., Marsh, W., Mauger, C., McGary, V. T., McGregor, G., Metcalf, W., Meyers, P. D., Mills, F., Mills, G. B., Monroe, J., Moore, C. D., Mousseau, J., Nelson, R. H., Nienaber, P., Nowak, J. A., Osmanov, B., Ouedraogo, S., Patterson, R. B., Pavlovic, Z., Perevalov, D., Polly, C. C., Prebys, E., Raaf, J. L., Ray, H., Roe, B. P., Russell, A. D., Sandberg, V., Schirato, R., Schmitz, D., Shaevitz, M. H., Shoemaker, F. C., Smith, D., Soderberg, M., Sorel, M., Spentzouris, P., Spitz, J., Stancu, I., Stefanski, R. J., Sung, M., Tanaka, H. A., Tayloe, R., Tzanov, M., Van de Water, R. G., Wascko, M. O., White, D. H., Wilking, M. J., Yang, H. J., Zeller, G. P., Zimmerman, E. D.
Rok vydání: 2011
Předmět:
Zdroj: Physics Letters B 718 (2013), pp. 1303-1308
Druh dokumentu: Working Paper
DOI: 10.1016/j.physletb.2012.12.020
Popis: 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.
Comment: 14 pages, 3 figures, and 2 tables, submitted to Physics Letters B
Databáze: arXiv
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