Implications of light Z′ on semileptonic B(Bs)→T{K2*(1430)(f2′(1525))}ℓ+ℓ− decays at large recoil

Mohapatra, Manas K. and Giri, Anjan (2021) Implications of light Z′ on semileptonic B(Bs)→T{K2*(1430)(f2′(1525))}ℓ+ℓ− decays at large recoil. Physical Review D, 104 (9). pp. 1-14. ISSN 2470-0010

Text
Physical Review D1.pdf - Published Version
Available under License Creative Commons Attribution.
Download (823kB)

Abstract

We probe the rare semileptonic decays B(s)→K2∗(1430)(f2′(1525))+- proceeding via b→s transition in the presence of a light Z′ boson. We employ the presence of an additional vector-type interaction and constrain the new physics coupling parameter using the existing experimental measurements on RK and RK∗ observables. To understand the sensitivity of the new physics coupling, we investigate the impact of this coupling on various physical observables such as differential branching ratio, the forward-backward asymmetry, the lepton polarization asymmetry, the angular observable P5′, and the lepton universality parameters such as the ratio of the branching ratio Rf2′(K2∗) and some important Q parameters of B(s)→K2∗(1430)(f2′(1525))+- processes at large recoil. We find some noticeable differences of the observables in the presence of light Z′ contribution. © 2021 authors. Published by the American Physical Society.

[error in script]

IITH Creators: