Constraints on a General Higgs Sector from $K^0-\bar K^0$, $B_d- \bar B_d$ Mixing and the $ε$ Parameter

Debrupa Chakraverty; Anirban Kundu

doi:10.1142/S0217732396000692

paper

Constraints on a General Higgs Sector from $K^{0} - K ˉ^{0}$ , $B_{d} - B ˉ_{d}$ Mixing and the $ε$ Parameter

arXiv:hep-ph/9508234 · doi:10.1142/S0217732396000692

Abstract

The scalar sector of the Standard Model is extended to include an arbitrary assortment of scalars. In the case where this assignment does not preserve $ρ = 1$ at the tree-level, the departure from unity itself puts the most stringent constraint on the scalar sector, and where $ρ_{t r ee} = 1$ is maintained, useful bounds on the parameter space of the charged Higgs mass and the doublet-nondoublet mixing angle can arise from data on $\bbbar$, $\kkbar$ mixing and the $\e$ parameter. These constraints turn out to be comparable (and in some cases, better) to those obtained from $\zbb$ data.

arXiv commentLaTeX file. Four figures, not appended, can be obtained from the Authors upon request

Constraints on a General Higgs Sector from K0−Kˉ0, Bd​−Bˉd​ Mixing and the ε Parameter

Abstract

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Constraints on a General Higgs Sector from $K^{0} - K ˉ^{0}$ , $B_{d} - B ˉ_{d}$ Mixing and the $ε$ Parameter