利用短基线中微子振荡过剩检验洛伦兹与 CPT 破坏
高能物理 - 实验
2013-01-16 v3 高能物理 - 唯象学
摘要
分析了 MiniBooNE 电子中微子和反电子中微子出现数据随恒星时的依赖性，以搜寻洛伦兹和 CPT 破坏的证据。非分箱 Kolmogorov-Smirnov 检验显示，电子中微子和反电子中微子出现数据与零恒星时变化假设的兼容性均超过 5%。利用基于标准模型扩展 (SME) 导出的洛伦兹破坏振荡模型进行非分箱似然拟合以描述背景之上的任何过剩事件，我们发现电子中微子出现数据更倾向于恒星时无关解，而反电子中微子出现数据略微倾向于恒星时相关解。对 SME 系数组合的限制量级为 10E-20 GeV。这些限制为缪子中微子到电子中微子以及反缪子中微子到反电子中微子的振荡提供了某些 SME 系数的最佳限制。文中提供了 SME 系数组合的拟合值与限制。
引用
@article{arxiv.1109.3480,
title = {Test of Lorentz and CPT violation with Short Baseline Neutrino Oscillation Excesses},
author = {The MiniBooNE Collaboration and A. A. Aguilar-Arevalo and C. E. Anderson and A. O. Bazarko and S. J. Brice and B. C. Brown and L. Bugel and J. Cao and L. Coney and J. M. Conrad and D. C. Cox and A. Curioni and R. Dharmapalan and Z. Djurcic and D. A. Finley and B. T. Fleming and R. Ford and F. G. Garcia and G. T. Garvey and J. Grange and C. Green and J. A. Green and T. L. Hart and E. Hawker and W. Huelsnitz and R. Imlay and R. A. Johnson and G. Karagiorgi and P. Kasper and T. Katori and T. Kobilarcik and I. Kourbanis and S. Koutsoliotas and E. M. Laird and S. K. Linden and J. M. Link and Y. Liu and Y. Liu and W. C. Louis and K. B. M. Mahn and W. Marsh and C. Mauger and V. T. McGary and G. McGregor and W. Metcalf and P. D. Meyers and F. Mills and G. B. Mills and J. Monroe and C. D. Moore and J. Mousseau and R. H. Nelson and P. Nienaber and J. A. Nowak and B. Osmanov and S. Ouedraogo and R. B. Patterson and Z. Pavlovic and D. Perevalov and C. C. Polly and E. Prebys and J. L. Raaf and H. Ray and B. P. Roe and A. D. Russell and V. Sandberg and R. Schirato and D. Schmitz and M. H. Shaevitz and F. C. Shoemaker and D. Smith and M. Soderberg and M. Sorel and P. Spentzouris and J. Spitz and I. Stancu and R. J. Stefanski and M. Sung and H. A. Tanaka and R. Tayloe and M. Tzanov and R. G. Van de Water and M. O. Wascko and D. H. White and M. J. Wilking and H. J. Yang and G. P. Zeller and E. D. Zimmerman},
journal= {arXiv preprint arXiv:1109.3480},
year = {2013}
}
备注
14 pages, 3 figures, and 2 tables, submitted to Physics Letters B