https://doi.org/10.1140/epjc/s10052-014-3104-z
Regular Article - Theoretical Physics
The semileptonic
and
decays in Isgur–Wise approach
1
Physics Department, Shahrood University, Shahrood, Iran
2
Department of Basic Sciences, Garmsar Branch, Islamic Azad University, Garmsar, Iran
* e-mail: h.hasanabadi@shahroodut.ac.ir
Received:
16
July
2014
Accepted:
26
September
2014
Published online:
10
October
2014
We consider a combination of linear confining and Hulthén potentials in the Hamiltonian and, via the perturbation approach, report the corresponding Isgur–Wise function parameters. Next, we investigate the Isgur–Wise function for and
semileptonic decays and report the decay width, branching ratio, and
CKM matrix element. A comparison with other models and experimental values is included.
© SIF and Springer-Verlag Berlin Heidelberg, 2014