论文标题
来自Leptoquark诱导的一阶electroweak Electroweak相变的重力波信号
Gravitational wave signals from leptoquark-induced first order electroweak phase transitions
论文作者
论文摘要
我们考虑使用标准模型（SM）的扩展，并在$ su（2）$ singlet，doublet和Triplet表示中使用标量leptoquarks。通过Leptoquark和SM Higgs场之间的耦合，Electroweak相变（EWPT）可以变成一阶，因此产生引力波信号。我们计算leptoquark-higgs的一阶ewpt发生的所需值，并讨论来自希格斯现象学的可能约束。选择一些基准，我们介绍了在Leptoquark诱导的一阶EWPT中产生的引力波的强度，并将它们与检测器敏感性进行了比较。我们发现，可以通过参数空间中的重力波来区分leptoquark的$ SU（2）$表示，在该空间中，一阶EWPT可以随着HIGGS门户耦合的函数而发生。
We consider the extension of the Standard Model (SM) with scalar leptoquarks in $SU(2)$ singlet, doublet and triplet representations. Through the coupling between leptoquark and the SM Higgs field, the electroweak phase transition (EWPT) can turn into first order and consequently produce gravitational wave signals. We compute the required value of the leptoquark-Higgs for first order EWPT to happen and discuss about the possible constraint from Higgs phenomenology. Choosing some benchmarks, we present the strength of the gravitational waves produced during the leptoquark-induced first order EWPT and compare them to detector sensitivities. We find that the $SU(2)$ representations of the leptoquark can be distinguished by gravitational waves in the parameter space where first order EWPT can happen as a function of the Higgs portal coupling.
