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arXiv 0912.1395hep-phastro-ph.SRhep-ex
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核塌缩超新星中的TeV-scale双轻子、跷跷板型II和轻子味破坏

TeV-scale bileptons, see-saw type II and lepton flavor violation in core-collapse supernova

Oleg Lychkovskiy, Sergei Blinnikov, Mikhail Vysotsky

摘要:

核心坍缩超新星内核中的电子和电子中微子是高度简并的,因此在爆炸的几秒钟内数量众多。相比之下,其他味的轻子是非简并的,因此相对稀少。这是由于轻子味道守恒。如果这个守恒定律被一些非标准相互作用打破,电子中微子就会转化为μ子和τ中微子,而电子则转化为μ子。这会影响超新星动力学和超新星中微子信号。我们考虑轻子味违反介导的标量双轻子,即轻子数为2的重标量的相互作用。结果表明,在TeV质量的双轻子的情况下,电子费米气体与非电子物种内部的超新星核心在(1-100)ms的顺序的时间尺度上的平衡。特别是,标量三重态产生中微子质量通过跷跷板II型机制被认为是。发现超新星核心对尚未探测到的三重态质量和耦合值很敏感。

英文摘要:

Electrons and electron neutrinos in the inner core of the core-collapse supernova are highly degenerate and therefore numerous during a few seconds of explosion. In contrast, leptons of other flavors are non-degenerate and therefore relatively scarce. This is due to lepton flavor conservation. If this conservation law is broken by some non-standard interactions, electron neutrinos are converted to muon and tau-neutrinos, and electrons - to muons. This affects the supernova dynamics and the supernova neutrino signal. We consider lepton flavor violating interactions mediated by scalar bileptons, i.e. heavy scalars with lepton number 2. It is shown that in case of TeV-mass bileptons the electron fermi gas is equilibrated with non-electron species inside the inner supernova core at a time-scale of order of (1-100) ms. In particular, a scalar triplet which generates neutrino masses through the see-saw type II mechanism is considered. It is found that supernova core is sensitive to yet unprobed values of masses and couplings of the triplet.

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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