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DOI码：10.1007/JHEP02(2021)090
发表刊物：Journal of High Energy Physics
摘要：An electroweak baryogenesis (EWBG) mechanism mediated by τ lepton trans- port is proposed. We extend the Standard Model with a real singlet scalar S to trigger the strong first-order electroweak phase transition (SFOEWPT), and with a set of lep- tophilic dimension-5 operators to provide sufficient CP violating source. We demonstrate this model is able to generate the observed baryon asymmetry of the universe. This sce- nario is experimentally testable via either the SFOEWPT gravitational wave signals at the next-generation space-based detectors, or the pp → h* → SS → 4τ process (where h∗ is an off-shell Higgs) at the hadron colliders. A detailed collider simulation shows that a considerable fraction of parameter space can be probed at the HL-LHC, while almost the whole parameter space allowed by EWBG can be reached by the 27 TeV HE-LHC.
论文类型：期刊论文
一级学科：物理学
文献类型：期刊
卷号：02
期号：090
是否译文：否
发表时间：2021-02-10
收录刊物：SCI
发布期刊链接：https://link.springer.com/article/10.1007/JHEP02(2021)090