https://doi.org/10.1051/epjconf/201920206010
Decay 
in Covariant Quark Model
Applied Physics Department, Faculty of Technology and Engineering, The Maharaja Sayajirao University of Baroda, Vadodara 390001, Gujarat, INDIA
* e-mail: nrsoni-apphy@msubaroda.ac.in
** e-mail: jnpandya-apphy@msubaroda.ac.in
Published online: 13 March 2019
Wepresent the branching fractions for the leptonic and semileptonic decays 
for ℓ = e,µ,τ and 
for ℓ = e,µ. We use the covariant confined quark model with built-in infrared confinement for computation of required transition form factors in the whole physical range of momentum transfer. Our results on the leptonic decays are found to agree well with the available experimental data. We obtain the following results for the semileptonicbranching fractions of 
mesons: ℬ(
2.85% and ℬ(
) = 2.70 %. The ratios of branching fractions are found to be ℬ(
/ ℬ(
) = 0.95 which is consistent with the recent BESIIIdata.
© The Authors, published by EDP Sciences, 2019
This is an open access article distributed under the terms of the Creative Commons Attribution License 4.0 (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
