New Physics Effect on Bs, d → l+l− Decays

Autor: P. Maji, S. Biswas, Sukadev Sahoo, P. Nayek
Rok vydání: 2021
Předmět:
Zdroj: International Journal of Theoretical Physics. 60:893-916
ISSN: 1572-9575
0020-7748
DOI: 10.1007/s10773-021-04713-3
Popis: The rare leptonic decays Bs, d → l+l− (l = e, μ, τ) present an important base to analyse the flavour structure of the standard model (SM) and also become a potential source to dig out possible signatures of new physics (NP) beyond the SM. The muonic decay Bs, d → μ+μ− has been observed at the LHC as well as the upper limits of branching ratios for other Bs, d → l+l− decays have been updated recently. In this paper, using the χ2 fitting method we have studied all these decay channels considering the effect of a Z′ boson. Our analysing method reproduces the result of the muonic channel of Bs meson, hence we have used the same strategy for the other Bs, d → l+l− decays.
Databáze: OpenAIRE