Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2009-08-16
Physics
High Energy Physics
High Energy Physics - Phenomenology
24 Pages
Scientific paper
The decay rates and spectroscopy of the $D$ and $D_s$ mesons are computed in a nonrelativistic phenomenological quark-antiquark potential of the type $V(r)=-{4/3}\frac{\alpha_s}{r}+A r^{\nu}$ with different choices of $\nu$. Numerical method to solve the Schr\"odinger equation has been used to obtain the spectroscopy of $q\bar{Q}$ mesons. The spin hyperfine, spin-orbit and tensor components of the one gluon exchange interactions are employed to compute the spectroscopy of the excited $S$ states, low lying $P$-waves and $D$-waves. The numerically obtained radial solutions are employed to obtain the decay constant and leptonic decay widths. It has been observed that predictions of the spectroscopy and the decay widths are consistent with other model predictions as well as with the known experimental values.
Patel Bhavin
Vinodkumar P. C.
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