Large Higgs-electron Yukawa coupling in 2HDM
Sign Up to like & getrecommendations! Published in 2017 at "Journal of High Energy Physics"
DOI: 10.1007/jhep04(2018)044
Abstract: A bstractThe present upper bound on κe, the ratio between the electron Yukawa coupling and its Standard Model value, is of O600$$ \mathcal{O}(600) $$. We ask what would be the implications in case that κe… read more here.
Keywords: yukawa coupling; large higgs; higgs electron; higgs doublet ... See more keywords
Seesaw neutrino dark matter by freeze-out
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DOI: 10.1088/1475-7516/2021/04/023
Abstract: We investigate whether right-handed neutrinos can play the role of the dark matter of the Universe and be generated by the freeze-out production mechanism. In the standard picture, the requirement of a long lifetime of… read more here.
Keywords: yukawa coupling; dark matter; neutrino yukawa; freeze ... See more keywords
Probing Higgs width and top quark Yukawa coupling from tt¯H and tt¯tt¯ productions
Sign Up to like & getrecommendations! Published in 2017 at "Physical Review D"
DOI: 10.1103/physrevd.95.053004
Abstract: We demonstrate that four top-quark production is a powerful tool to constrain the top Yukawa coupling. The constraint is robust in the sense that it does not rely on the Higgs boson decay. Taking into… read more here.
Keywords: yukawa coupling; probing higgs; top quark; higgs width ... See more keywords
Wrong sign Yukawa coupling of the 2HDM with a singlet scalar as dark matter confronted with dark matter and Higgs data
Sign Up to like & getrecommendations! Published in 2017 at "Physical Review D"
DOI: 10.1103/physrevd.96.115025
Abstract: In the framework of type-II two-Higgs-doublet model with a scalar dark matter ($S$), we examine the wrong sign Yukawa coupling of the 125 GeV Higgs which is the only portal between the dark matter and… read more here.
Keywords: yukawa coupling; sign yukawa; wrong sign; matter ... See more keywords