Mass spectra and decay properties of $D_s$ Meson in a relativistic Dirac formalism

Abstract

The mass spectra of $D_s$ meson is obtained in the framework of relativistic independent quark model using Martin like potential for the quark confinement. The predicted excited states are in good agreement with the experimental results as well as with the lattice and other theoretical predictions. The spectroscopic parameters are employed further to compute the decay constant, electromagnetic transition and leptonic decay widths. The present result for its decay constant, $f_P$ (252.82 MeV) is in excellent agreement with the value 252.6 $\pm$ 11.1 MeV reported by CLEO-c and the predicted branching ratios for $(D_s\to \tau {\bar{\nu }}_{\tau },\mu {\bar{\nu }}_{\mu })$ ($5.706\times 10^{-2},5.812\times 10^{-3}$) are in close agreement with the PDG values ($(5.43\pm 0.31)\times 10^{-2},(5.90\pm 0.33)\times 10^{-3}$) respectively.

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Cited by in corpus (12)

• Properties of Excited Charm and Charm-Strange Mesons
• Magnetic properties of ground-state mesons
• Mass spectra and strong decays of charmed and charmed-strange mesons
• Mass spectra and decay properties of $D$ Meson in a relativistic Dirac formalism
• Heavy-Light Mesons in the Non-Relativistic Quark Model Using Laplace Transformation Method
• Status of quarkonia - like negative and positive parity states in a relativistic confinement scheme
• Decay $D\to K^{(\ast )}{\ell }^{+}{\nu }_{\ell }$ in covariant quark model
• Analytic approach to calculations of mass spectra and decay constants of heavy-light quarkonia in the framework of Bethe-Salpeter equation
• Strong decays of $D_J(3000)$ and $D_{sJ}(3040)$
• $E1$ and M1 radiative transitions involving heavy-light axial, pseudoscalar and vector quarkonia in the framework of Bethe-Salpeter equation
• Masses of tetraquark states in the hidden charm sector above $D-D^{\ast }$ threshold
• Quark and lepton mixing matrices: manifestations of a violated mirror symmetry