arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2001.07637hep-phastro-ph.COhep-exhep-th
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来自中微子质量的引力波与暗物质成因

Gravitational waves from neutrino mass and dark matter genesis

Pasquale Di Bari, Danny Marfatia, Ye-Ling Zhou

摘要:

我们引入了一个模型,其中的暗物质(DM)和中微子质量的起源与一个一阶相变的标量单态场。在相变过程中,源右手中微子(RHN)动态地获得时空相关的质量,其中一小部分通过共振振荡转化为非常弱的混合暗RHN,其衰变为具有所观察到的遗迹丰度的暗物质RHN。中微子质量是通过第四个RHN和源中微子之间传统的两个RHN I型跷跷板产生的。在相变过程中产生的引力波的峰值频率随着DM质量的增加而增加,并且在未来的引力波干涉仪上可以检测到DM质量超过1 MeV的引力波。由于源RHN比电弱标度重,成功的leptogenesis也是可以实现的。

英文摘要:

We introduce a model in which the genesis of dark matter (DM) and neutrino masses is associated with a first order phase transition of a scalar singlet field. During the phase transition a source right-handed neutrino (RHN) acquires a spacetime-dependent mass dynamically, a small fraction of which is converted via resonant oscillations into a very weakly mixed dark RHN which decays to a dark matter RHN with the observed relic abundance. Neutrino masses are generated via a traditional two RHN type-I seesaw between a fourth RHN and the source neutrino. The gravitational waves produced during the phase transition have a peak frequency that increases with the DM mass, and are detectable at future gravitational wave interferometers for DM masses above ~ 1 MeV. Since the source RHNs are heavier than the electroweak scale, successful leptogenesis is also attainable.

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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