Asymmetries in B → K^∗ ℓ⁺ ℓ^- Decays and Two Higgs Doublet Model

2016/02/07 by Ishtiaq Ahmed, Ahmed, Ishtiaq, M. Jamil Aslam +3
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions

paper · pdf · doi:10.48550/arxiv.1602.02400

openalex publication_date 2016/02/07 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

The study of polarized branching ratio and different lepton polarization asymmeteries in the exclusive rare decays B→ K^∗ℓ⁺ℓ^- (ℓ=μ, τ) have been made in the standard model (SM) and in type III of the THDM. It has been found that the effects arise from the THDM are quite promising in the longitudinal and transverse polarized branching ratios (B_{L, T}). Likewise, in case of μ's as final state leptons, the polarized branching ratios have an order of magnitude difference from their SM results. Similar trends have also been observed both in the longitudinal and normal lepton polarization asymmetries P_{L, N} as well as their average values. We hope that the possible signatures of these observables in B→ K^∗ℓ⁺ℓ^- decays at different on going and future experiments will serve as a good tool in the indirect searches of an extra Higgs boson doublet.

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