Analysis of semileptonic B→a1(1260)ℓ−ˉνℓ process within SMEFT framework
M. Mohapatra* and M.K. Mohapatra
Pre-published on:
April 02, 2024
Published on:
August 01, 2024
Abstract
Motivated by the prospects of the ongoing B meson experiments, we study the exclusive B→a1(1260)ℓ−ˉνℓ process within the Standard model effective field theory formalism. The new physics parameters are constrained by using the experimental branching fractions of the (semi)leptonic B→ℓˉν and B→(π,ρ,ω)ℓˉν processes (where ℓ=e,μ,τ) which undergoes b→uℓˉν quark level transitions. We then study a comprehensive angular coefficient analysis of the exclusive B→a1(1260)ℓ−ˉνℓ process in the Standard model and in the presence of various new physics operators.
DOI: https://doi.org/10.22323/1.462.0067
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