A Heavy-Light Chiral Quark Model

Abstract

We present a new chiral quark model for mesons involving a heavy and a light (anti-) quark. The model relates various combinations of a quark - meson coupling constant and loop integrals to physical quantities. Then, some quantities may be predicted and some used as input. The extension from other similar models is that the present model includes the lowest order gluon condensate of the order (300 MeV)^4 determined by the mass splitting of the 0^- and the 1^- heavy meson states. Within the model, we find a reasonable description of parameters such as the decay constants f_B and f_D, the Isgur-Wise function and the axial vector coupling g_A in chiral perturbation theory for light and heavy mesons.

31 pages, 13 figures, RevTex4.0

References in corpus (4)

• Big-Bang Nucleosynthesis
• First Measurement of Gamma(D*+) and Precision Measurement of m_D*+ - m_D0
• Nonfactorizable contributions to the decay mode D^0 -> K^0 \bar{K^0}
• A gluonic mechanism for B --> D eta'

Cited by in corpus (14)

• Chiral Multiplets of Heavy-Light Mesons
• Strong decays of newly observed $D_{sJ}$ states in a constituent quark model with effective Lagrangians
• Regge Trajectories Analysis to DsJ(2317), DsJ(2460) and DsJ(2632) Mesons
• Form factors for semileptonic D decays
• Color suppressed contributions to the decay modes B_{d,s} -> D_{s,d} D_{s,d}, B_{d,s} -> D_{s,d} D^*_{s,d}, and B_{d,s} -> D^*_{s,d} D^*_{s,d}
• On the Colour Suppressed Decay Modes B^0 --> D_s^+ D_s^- and B_s^0 --> D^+ D^-
• Relativistic NJL Model with Light and Heavy Quarks
• Non-factorizable contribtion to $\overline{B_d^0}\to {\pi }^0{D}^0$
• The Isgur-Wise Function within a Modified Heavy-Light Chiral Quark Model
• On the Decay Modes $\overline{B_{d,s}^0}\to \gamma D^{\ast 0}$
• New Dipole Penguin Contribution to K --> pi pi decays
• On the color suppressed contribution to $\bar{B_{d}^0} \rightarrow \, π^0 π^{0}
• Non-factorizable contributions to $\overline{B_d^0}\to D_s^{(\ast )}\overline{D_s^{(\ast )}}$
• Mass spectra of heavy mesons with instanton effects