Efficacy of scalar leptoquark on B_s → (K^(*), D_s^(*)) τ ν_τ decay modes

2020/05/26 by S. Sahoo, Sahoo, Suchismita, Anupama Bhol +1
Physics and Astronomy · #Dark Matter and Cosmic Phenomena #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions

paper · pdf · doi:10.48550/arxiv.2005.12630

openalex publication_date 2020/05/26 · openalex created_date 2022/07/26 · openalex updated_date 2026/07/28

Abstract

We scrutinize the impact of various relevant scalar leptoquarks on the physical observables associated with the rare semileptonic decay processes of B_s meson involving b → (u, c) l ν_l quark level transitions. We constrain the new parameter space consistent with the experimental limit on Br(B_u,c → τν_l), Br(B → πτ ν_τ), R_D^(*), R_J/ψ and R_π^l observables. Using the allowed parameter space, we compute the branching ratios, forward-backward asymmetries, lepton and hardon polarization asymmetries of B_s → (K^(*), D_s^(*)) τ ν_τ decay modes. Forbye, we look at the possibility of existence of lepton non-universality in these processes.

Related

• Impact of leptoquarks in semileptonic B decays
• Analysis of Λ_b → Λμ⁺ μ^- decay in scalar leptoquark model
• Delving into new physics in semileptonic b → c τ ν transitions
• Probing the Λ_b→ Λ_c^*τν_τ decays with leptoquarks
• Discriminating Tauphilic Leptoquark Explanations of the B Anomalies via K→ πνν and B→ Kνν