Lepton polarization and CP-violating effects in $\overline{B}\rightarrow \overline{K}_{0}^{*}(1430) \ell^+\ell^-$ Decay in Standard and Two Higgs Doublet Model

TL;DR

This paper investigates lepton polarization and CP violation in B meson decays to explore potential signals of new Higgs bosons within the Standard Model and Two Higgs Doublet Model frameworks, emphasizing their dependence on dilepton mass and averaging over specific ranges.

Contribution

It provides a detailed analysis of polarization asymmetries and CP violation in B decays to K0* mesons and leptons, highlighting their sensitivity to new Higgs bosons in the 2HDM.

Findings

Asymmetries vary with dilepton mass squared $q^2$.

Averaged asymmetries can signal new Higgs physics.

Potential to probe new Higgs bosons in future experiments.

Abstract

In this paper we analyze the dilepton mass square $q^2$ dependency of single lepton polarization asymmetries and CP violation for $\overline{B}\rightarrow \overline{K}_0^{*}(1430) \ell^+\ell^-, \ell=\mu,\tau)$ in the 2HDM context. Also, we study the averages of these asymmetries in the domain $4 m_{\ell}^2<q^2< (m_B-m_{{K}_0^{*}})^2$. Our study manifests that the investigation of the above-mentioned asymmetries for $\overline{B}\rightarrow \overline{K}_0^*(1430) \ell^+\ell^-$ processes could provide useful information for probing new Higgs bosons in the future B-physics experiments.