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arXiv 1303.4891hep-phastro-ph.HE
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超高能中微子的不可见衰变

Invisible decays of ultra-high energy neutrinos

L. Dorame, O. G. Miranda, J. W. F. Valle

摘要:

伽马射线暴(GRB)被认为是超高能宇宙射线的来源,伴随着中微子望远镜可能探测到的中微子。最近,IceCube已经设定了一个远低于理论预期的中微子通量上限。我们调查是否预期和观察之间的不匹配可以是由于中微子衰变。我们证明了中微子衰变假说的唯象一致性和理论可行性。一个潜在的含义是可观测的majoron发射无中微子双β衰变。

英文摘要:

Gamma-ray bursts (GRBs) are expected to provide a source of ultra high energy cosmic rays, accompanied with potentially detectable neutrinos at neutrino telescopes. Recently, IceCube has set an upper bound on this neutrino flux well below theoretical expectation. We investigate whether this mismatch between expectation and observation can be due to neutrino decay. We demosntrate the phenomenological consistency and theoretical plausibility of the neutrino decay hypothesis. A potential implication is the observability of majoron-emitting neutrinoless double beta decay.

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