Associate Professor
Supervisor of Master's Candidates
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DOI number:10.1007/JHEP02(2021)090
Journal:Journal of High Energy Physics
Abstract: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.
Indexed by:Journal paper
First-Level Discipline:Physics
Document Type:J
Volume:02
Issue:090
Translation or Not:no
Date of Publication:2021-02-10
Included Journals:SCI
Links to published journals:https://link.springer.com/article/10.1007/JHEP02(2021)090
