中文

0.1 eV 量级的 Majorana 中微子质量上限

高能物理 - 实验 2008-11-26 v1

摘要

Heidelberg-Moscow 实验给出了 Majorana 中微子质量的最严格上限。在获取 24 kg yr 并带有脉冲波形测量的数据后,我们设定了 76Ge 中无中微子双 beta 衰变半衰期的下限为 T1/2>5.7×1025T_{1/2} > 5.7 \times 10^{25} yr(90% 置信水平),从而排除了有效 Majorana 中微子质量大于 0.2 eV 的可能。这允许对简并中微子质量模型设定强约束。

关键词

引用

@article{arxiv.hep-ex/9902014,
  title  = {Limits on the Majorana neutrino mass in the 0.1 eV range},
  author = {L. Baudis and A. Dietz and G. Heusser and H. V. Klapdor-Kleingrothaus and I. V. Krivosheina and St. Kolb and B. Majorovits and V. F. Melnikov and H. Paes and F. Schwamm and H. Strecker and V. Alexeev and A. Balysh and A. Bakalyarov and S. T. Belyaev and V. I. Lebedev and S. Zhukov},
  journal= {arXiv preprint arXiv:hep-ex/9902014},
  year   = {2008}
}

备注

6 pages (latex) including 3 postscript figures and 2 tables