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arXiv 1301.7654hep-phhep-ex
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中微子-反中微子振荡中的CP破坏性质

Properties of CP Violation in Neutrino-Antineutrino Oscillations

Zhi-zhong Xing

摘要:

如果大质量中微子是Majorana粒子,那么如何确定Majorana CP破坏相将成为未来中微子实验中不可回避的问题。我们认为,中微子反中微子振荡的研究将大大有助于在这方面,虽然这个问题仍然是纯学术目前。本文首先在三味框架下导出中微子-反中微子振荡的几率和CP破坏不对称性,然后在两种特殊情况下说明它们的性质:m_1 = 0的正常中微子质量体系和m_3 = 0的倒置中微子质量体系.我们证明了显着的贡献的马约拉纳阶段的CP违反不对称性,即使在没有狄拉克阶段。

英文摘要:

If the massive neutrinos are the Majorana particles, how to pin down the Majorana CP-violating phases will eventually become an unavoidable question relevant to the future neutrino experiments. We argue that a study of neutrino-antineutrino oscillations will greatly help in this regard, although the issue remains purely academic at present. In this work we first derive the probabilities and CP-violating asymmetries of neutrino-antineutrino oscillations in the three-flavor framework, and then illustrate their properties in two special cases: the normal neutrino mass hierarchy with m_1 = 0 and the inverted neutrino mass hierarchy with m_3 = 0. We demonstrate the significant contributions of the Majorana phases to the CP-violating asymmetries, even in the absence of the Dirac phase.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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