Friday, March 9, 2012

1203.1656 (Bumseok Kyae et al.)

Hidden Sector Assisted 125 GeV Higgs    [PDF]

Bumseok Kyae, Jong-Chul Park
In order to significantly raise the mass of the SUSY Higgs, we consider a radiative correction to it by heavy hidden sector fields, which communicate with the Higgs through relatively heavy messengers (300-500 GeV). The messenger fields (S, \bar{S}) are coupled to the Higgs ("y_HSH_uH_d," y_H\lesssim 0.7) and also to hidden sector fields with a Yukawa coupling of order unity. The hidden sector fields are assumed to be a large representation of a hidden gauge group, and so their scalar partner's masses can be quite heavier than other typical soft scalars in the visible sector. Even with a relatively small y_H (\sim 0.1) or tan\beta\sim 10 but without the top-stop's considerable contributions, the radiative correction by such MSSM singlets can be enhanced enough to yield the 125 GeV Higgs mass.
View original: http://arxiv.org/abs/1203.1656

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