Signature of (axial)vector operators in B_c→ D_s^(*) μ⁺ μ^- decays

2024/09/02 by Mohapatra, Manas Kumar, Yadav, Ajay Kumar, Sahoo, Suchismita
#FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph)

paper · doi:10.48550/arxiv.2409.01269

Abstract

The persistent anomalies observed in B mesons related to b → s μ⁺ μ^- transitions point to the potential for new physics beyond the Standard Model. To explore this further, we conduct an analysis of the exclusive semileptonic decays B_c→ D_s^(*) μ⁺ μ^- within an effective field theory formalism. We perform a global fit to new (axial)vector couplings using the current experimental data for b → s μ⁺ μ^- transitions. We compute the branching ratios and physical observables such as forward-backward asymmetries, lepton polarization asymmetries, form factor independent observables for B_c→ D_s^(*) μ⁺ μ^-, both within the Standard Model and in new physics scenarios. Additionally, we examine the existence of lepton flavor universality violation in the B_c→ D_s^(*) ℓ⁺ ℓ^- process.

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