Generalized screening theorem for Higgs decay processes in the two-doublet model

Details Generalized screening theorem for Higgs decay processes in the two-doublet model Generalized screening theorem for Higgs decay processes in the two-doublet model

1996-04-22

arxiv.org/abs/hep-ph/9604381v1

Nucl.Phys. B483 (1997) 111-140; Erratum-ibid. B506 (1997) 548-550

Physics

High Energy Physics

High Energy Physics - Phenomenology

42 pages, latex, 9 figures

Scientific paper

10.1016/S0550-3213(96)00560-3

The radiative corrections to the decay processes of the neutral ($CP$-even) Higgs boson ($H$) into a longitudinal gauge boson pair, {\it i.e.}, $H \rightarrow Z_{L}Z_{L}$ and $H \rightarrow W_{L}^{+}W_{L}^{-}$ are analyzed in the two-Higgs doublet model by assuming that all of the Higgs boson masses are much greater than the $W$ and $Z$ bosons'. These calculations are motivated to see if one could see potentially large virtual effects to these decay rates due to the charged and $CP$-odd neutral Higgs boson masses ($m_{G}$ and $m_{A}$, respectively) which are supposed to be larger than $m_{H}$. It is pointed out that, although the radiative corrections to the decay width $\Gamma (H\rightarrow W_{L}^{+}W_{L}^{-})$ depend sensitively in general on $m_{G}$ and $m_{A}$, there occurs a screening effect, {\it i.e.,} cancellation in leading terms once we set $m_{G}=m_{A}$, so that the radiative corrections tend to be minimized. It is also pointed out that the decay rate $\Gamma (H\rightarrow Z_{L}Z_{L})$ is fairly insensitive to the other heavier Higgs masses and is possibly a good measuring tool of the Higgs mixing angle. The mechanism of these screening phenomena in the Higgs decays is explained on the basis of a new screening theorem, which we postulate with reference to the custodial symmetry in the Higgs potential.

Affiliated with

Also associated with

No associations

Rating

Generalized screening theorem for Higgs decay processes in the two-doublet model does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Generalized screening theorem for Higgs decay processes in the two-doublet model, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Generalized screening theorem for Higgs decay processes in the two-doublet model will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-393903