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arXiv 1512.06357hep-phastro-ph.CO
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一般NMSSM中强相变的可探测引力波

Detectable Gravitational Waves from Very Strong Phase Transitions in the General NMSSM

Stephan J. Huber, Thomas Konstandin, Germano Nardini, Ingo Rues

摘要:

我们研究了一般的NMSSM,重点是具有非常强的一阶电弱相变(EWPT)的参数区域。在存在耦合到希格斯扇区的重场的情况下,由于存在相当大的辐射修正,分析可能会有问题。在本文中,我们提出了一个减法方案,有助于规避这个问题。为了简单起见,我们专注于一个参数区域,这是通过构造隐藏从当前碰撞器搜索。分析证明,至少在参数识别区域内,EWPT可以很强,可以产生强烈的引力波信号。相应的引力随机背景可能会在计划中的天基引力波观测站eLISA上探测到,这取决于将被批准的具体实验设计。

英文摘要:

We study the general NMSSM with an emphasis on the parameter regions with a very strong first-order electroweak phase transition (EWPT). In the presence of heavy fields coupled to the Higgs sector, the analysis can be problematic due to the existence of sizable radiative corrections. In this paper we propose a subtraction scheme that helps to circumvent this problem. For simplicity we focus on a parameter region that is by construction hidden from the current collider searches. The analysis proves that (at least) in the identified parameter region the EWPT can be very strong and striking gravitational wave signals can be produced. The corresponding gravitational stochastic background can potentially be detected at the planned space-based gravitational wave observatory eLISA, depending on the specific experiment design that will be approved.

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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