https://doi.org/10.1140/epjc/s10052-014-3081-2
Regular Article - Theoretical Physics
Phenomenological discriminations of the Yukawa interactions in two-Higgs doublet models with 
symmetry
1
Institute of Particle Physics, Central China Normal University, Wuhan, 430079, Hubei, People’s Republic of China
2
Key Laboratory of Quark and Lepton Physics, Ministry of Education, Wuhan, 430079, Hubei, People’s Republic of China
* e-mail: xbyuan@mails.ccnu.edu.cn
Received:
19
June
2014
Accepted:
15
September
2014
Published online:
1
October
2014
There are four types of two-Higgs doublet models under a discrete symmetry imposed to avoid tree-level flavor-changing neutral current, i.e. type-I, type-II, type-X, and type-Y models. We investigate the possibility to discriminate the four models in the light of the flavor physics data, including 
–
mixing, 
, 
and 
decays, the recent LHC Higgs data, the direct search for charged Higgs at LEP, and the constraints from perturbative unitarity and vacuum stability. After deriving the combined constraints on the Yukawa interaction parameters, we have shown that the correlation between the mass eigenstate rate asymmetry 
of 
and the ratio 
could be a sensitive probe to discriminate the four models with future precise measurements of the observables in the decay at LHCb.
© SIF and Springer-Verlag Berlin Heidelberg, 2014
