https://doi.org/10.1140/epjc/s10052-016-3883-5
Regular Article - Theoretical Physics
Three symmetry breakings in strong and radiative decays of strange heavy mesons
1
Institute of Physics, Academia Sinica, Taipei, 115, Taiwan, ROC
2
Department of Physics, National Kaohsiung Normal University, Kaohsiung, 824, Taiwan, ROC
* e-mail: t2732@nknucc.nknu.edu.tw
Received:
2
October
2015
Accepted:
4
January
2016
Published online:
18
January
2016
In this paper, we investigate three symmetry breaking effects in strong and radiative decays of strange heavy mesons. We study 
corrections within the heavy quark effect theory, as well as SU(3) and SU(2) symmetry breakings induced by light-quark mass differences and the 
–
mixing vertex. These effects are studied in a covariant model. The numerical results show that the corrections of the coupling constants are consistent with 
. The SU(3) symmetry violating effect of the strong coupling constant is obviously larger than that of the magnetic coupling constant. The value of the – mixing vertex has some changes because of the renewed data. As compared with the other theoretical calculations and the experimental data, our radiative decay rates are much larger than those of the other theoretical methods, except for 
PT; however, our branching ratios are close to the experimental data.
© The Author(s), 2016
