Study of semileptonic decays

Anupama Bhol

doi:10.1209/0295-5075/106/31001

All issues

Volume 106 / No 3 (May 2014)

EPL, 106 3 (2014) 31001

Abstract

Issue		EPL Volume 106, Number 3, May 2014


Article Number		31001
Number of page(s)		6
Section		The Physics of Elementary Particles and Fields
DOI		https://doi.org/10.1209/0295-5075/106/31001
Published online		08 May 2014

EPL, 106 (2014) 31001

Study of $Bs \to Ds^{(\ast)}\,l\,\nu_l$ semileptonic decays

Anupama Bhol^(a)

Indian Institute of Technology Hyderabad - Hyderabad 502205, India

^(a) ph10p004@iith.ac.in

Received: 30 January 2014
Accepted: 10 April 2014

Abstract

We study the $B_s \to {D_s}^{(\ast)}\,l\,\bar{\nu}_{l}$ semileptonic decays involving the quark level transition $b\to c\,l\,\nu$ , in the framework of the standard model (SM). We calculate the branching ratios and we define observables such as the ratio of branching fractions $R_{D_s,D_s^*}$ for different leptonic modes and $R_{\tau,\,l}$ , where $l = e^-,\,\mu^-$ for the same leptonic mode and we estimate their numerical values. We also study observables such as the differential branching ratio and forward-backward asymmetry and their implications.

PACS: 14.40.Nd – Bottom mesons (| / 13.20.He – Decays of bottom mesons / 13.20.-v – Leptonic, semileptonic, and radiative decays of mesons

© EPLA, 2014

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