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arXiv 1303.2291astro-ph.COnucl-th
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中性费米子衰变为中微子的大爆炸核合成极限

A Big-Bang Nucleosynthesis Limit on the Neutral Fermion Decays into Neutrinos

Motohiko Kusakabe, A. B. Balantekin, Toshitaka Kajino, Y. Pehlivan

摘要:

利用原初氦丰度,通过限制额外螺旋度态的数量,为狄拉克中微子的磁矩提供了一个上限。考虑中微子磁矩引起的重无菌质量本征态衰变中产生的非热光子,我们探讨了大爆炸核合成过程中产生的所有轻元素的观测丰度所施加的约束。

英文摘要:

Using the primordial helium abundance, an upper limit to the magnetic moments for Dirac neutrinos had been provided by imposing restrictions on the number of the additional helicity states. Considering non-thermal photons produced in the decay of the heavy sterile mass eigenstates due to the neutrino magnetic moment, we explore the constraints imposed by the observed abundances of all the light elements produced during the Big Bang nucleosynthesis.

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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