利用EXO-200在双β衰变中首次搜寻洛伦兹与CPT破坏
核实验
2016-04-05 v2 高能物理 - 唯象学
摘要
利用EXO-200探测器在Xe双β衰变能谱中进行了洛伦兹与CPT破坏信号的搜寻，曝光量为100 kgyr。未发现由各向同性洛伦兹破坏引起的能谱修正的显著证据，并在标准模型扩展(Standard-Model Extension, SME)内对相关系数给出了双侧限制 (90% C.L.)。这是对SME定义的免振荡且动量无关的 neutrino耦合算符在双β衰变过程中效应的首次实验研究。
引用
@article{arxiv.1601.07266,
title = {First Search for Lorentz and CPT Violation in Double Beta Decay with EXO-200},
author = {200 Collaboration and J. B. Albert and P. S. Barbeau and D. Beck and V. Belov and M. Breidenbach and T. Brunner and A. Burenkov and G. F. Cao and C. Chambers and B. Cleveland and M. Coon and A. Craycraft and T. Daniels and M. Danilov and S. J. Daugherty and C. G. Davis and J. Davis and S. Delaquis and A. Der Mesrobian-Kabakian and R. DeVoe and J. S. Díaz and T. Didberidze and J. Dilling and A. Dolgolenko and M. J. Dolinski and M. Dunford and W. Fairbank and J. Farine and S. Feyzbkhsh and W. Feldmeier and P. Fierlinger and D. Fudenberg and R. Gornea and K. Graham and G. Gratta and C. Hall and S. Homiller and M. Hughes and M. J. Jewell and X. S. Jiang and A. Johnson and T. N. Johnson and S. Johnston and A. Karelin and L. J. Kaufman and R. Killick and T. Koffas and S. Kravitz and R. Krücken and A. Kuchenkov and K. S. Kumar and D. S. Leonard and Y. H. Lin and J. Ling and R. MacLellan and M. G. Marino and B. Mong and D. Moore and R. Nelson and O. Njoya and A. Odian and I. Ostrovskiy and A. Piepke and A. Pocar and C. Y. Prescott and F. Retiére and P. C. Rowson and J. J. Russell and A. Schubert and D. Sinclair and E. Smith and V. Stekhanov and M. Tarka and T. Tolba and R. Tsang and K. Twelker and J. -L. Vuilleumier and P. Vogel and A. Waite and J. Walton and T. Walton and M. Weber and L. J. Wen and U. Wichoski and J. Wood and L. Yang and Y. -R. Yen and O. Ya. Zeldovich},
journal= {arXiv preprint arXiv:1601.07266},
year = {2016}
}
备注
6 pages, 3 figures