论文标题
中微子质量创世纪的重力波
Gravitational waves from neutrino mass genesis
论文作者
论文摘要
引力波的发现为测试BSM物理学开辟了新的机会。特别是，原始引力波的随机背景的产生可以提供右右主要中微子质量项的产生的标志，以解释中微子及其混合参数的轻度。我将讨论这种一代在Maparon模型中发生在强大的一阶相变中的可能性[1]。众所周知，这确实可以产生重力波的随机背景。相变的尺度可以或不能与Seesaw量表重合。在后一种情况下，在预选前时代发生的低量表过渡可能会以非常低的频率进行测试（$ 10^{ - 9} $ - $ 10^{ - 6} \，{\ rm hz} $）。即使该信号几乎无法重现纳米型推定信号，但在低尺度上，这种新物理也可能有助于改善$λ$ CDM宇宙学模型中的张力（例如，哈勃张力）。我还将讨论如何以深色中微子耦合与seesaw中微子的形式产生暗物质的产生，这是如何通过希格斯诱导的右手右手中微子混合而产生的[2]。
The discovery of gravitational waves opens new opportunities to test BSM physics. In particular, the production of a stochastic background of primordial gravitational waves could provide a signature of the generation of the right-right Majorana neutrino mass term necessary, within type-I seesaw mechanism, to explain lightness of neutrinos and their mixing parameters. I will discuss the possibility that such a generation occurs during a strong first order phase transition within Majoron models [1]. As well known, this can indeed produce a stochastic background of gravitational waves. The scale of the phase transition can or cannot coincide with the seesaw scale. In the latter case a low scale phase transition, occurring in the pre-recombination era, might be tested at very low frequencies ($10^{-9}$--$10^{-6}\,{\rm Hz}$). Even though the signal can hardly reproduce the NANOGrac putative signal such new physics at low scale might help ameliorating the tensions in the $Λ$CDM cosmological model (e.g., the Hubble tension). I will also discuss how a phase transition might be responsible for the generation of dark matter in the form of dark neutrinos coupling to the seesaw neutrinos via Higgs induced right handed-right handed neutrino mixing [2].
