Electroweak vacuum metastability and low-scale inflation
Electroweak vacuum metastability and low-scale inflation
复制标题
电弱真空亚稳态和低尺度膨胀
DOI：
10.1088/1475-7516/2017/12/030
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发表时间：
2017
影响因子：
6.4
通讯作者：
Nakayama Kazunori
中科院分区：
文献类型：
--
作者：
Ema Yohei ;Mukaida Kyohei ;Nakayama Kazunori
本文研究了低尺度暴胀模型中的电弱真空的稳定性，其中Hubble参数远小于Higgs势的不稳定尺度。在一般情况下，暴胀子和希格斯粒子之间的耦合是存在的，因此，我们研究这些耦合过程中和之后的通货膨胀的影响。我们得到的约束，要求它们不会导致灾难性的电弱真空衰变，特别是通过共振生产的希格斯粒子的暴胀子和希格斯之间的耦合。
We study the stability of the electroweak vacuum in low-scale inflation models whose Hubble parameter is much smaller than the instability scale of the Higgs potential. In general, couplings between the inflaton and Higgs are present, and hence we study effects of these couplings during and after inflation. We derive constraints on the couplings between the inflaton and Higgs by requiring that they do not lead to catastrophic electroweak vacuum decay, in particular, via resonant production of the Higgs particles.