Flavon-induced lepton flavour violation

5th Symposium on Prospects in the Physics of Discrete Symmetries

Keus, Venus^1

Department of Physics, Helsinki Institute of Physics, University of Helsinki, Gustaf Hällströmin katu 2, Helsinki

FIN-00014, Finland^1

关键词: Charged leptons;    Higgs boson;    Lepton flavour violations;    Nielsen;    Parameter spaces;    The standard model;    Yukawa matrices;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/873/1/012040/pdf
DOI  :  10.1088/1742-6596/873/1/012040

来源: IOP

【 摘 要 】

ATLAS and CMS have observed a flavor violating decay of the Higgs to muon and tau. The fact that flavour violating couplings of the Higgs boson are exactly zero in the Standard Model suggests the mixing of the Higgs with another scalar with flavour violating couplings. We use the flavon field from the Froggatt-Nielsen mechanism, responsible for generating the lepton Yukawa matrices, for this purpose. The parameter space is constrained from experimental bounds on charged lepton flavor violation in other processes, however, we show that a substantial region of parameter space survives these bounds while producing a large enough Br(h → μτ).