Strong and Radiative $D^{\ast }$ Decays

Abstract

We use the relativistic light--front quark model to show that both strong and radiative $D^{\ast }$ decays are in good agreement with the 1992 CLEO II results. In particular the coupling for $D^{\ast}\ra D π$ is consistent with the experimental upper limit. The key point is the relativistic treatment of the quark spin.

14 pages, Latex, Postscript figure included at the end, UTPT--94--15

References in corpus (6)

• Chiral Lagrangians for Radiative Decays of Heavy Hadrons
• Radiative $D^{\ast }$ Decay Using Heavy Quark and Chiral Symmetry
• Electromagnetic Interactions in Heavy Hadron Chiral Theory
• Radiative Heavy Meson Transitions
• Semileptonic and Exclusive Rare B Decays
• Simply Modeling Meson HQET

Cited by in corpus (31)

• Phenomenology of Heavy Meson Chiral Lagrangians
• $D^{\ast }D\pi$ and $B^{\ast }B\pi$ couplings in QCD
• Mesonic Form Factors and the Isgur-Wise Function on the Light-Front
• Radiative Weak Decays of Charm Mesons
• Consistent treatment of spin-1 mesons in the light-front formalism
• First lattice QCD estimate of the g_{D^* D pi} coupling
• Study of $B_{s,d}\to l^{+}{l}^{-}\gamma$ Decays
• Radiative Leptonic B Decays in the Light Front Model
• Kaon electroweak form factors in the light-front quark model
• Magnetic properties of ground-state mesons
• Study of the leptonic decays of pseudoscalar $B,D$ and vector $B^{\ast },D^{\ast }$ mesons and of the semileptonic $B\to D$ and $B\to D^{\ast }$ decays
• $B->\pi l\nu$ Form Factors Calculated on the Light-Front
• A consistent treatment for pion form factors in space-like and time-like regions
• Remarks on the Strong Coupling Constants in Heavy Hadron Chiral Lagrangians
• A Covariant Light-Front Model of Heavy Mesons within HQET
• Mesonic Tensor Form Factors with Light Front Quark Model
• Observation of the Radiative Decay $D^{\ast +}\to D^{+}\gamma$
• Purely leptonic decays of the ground charged vector mesons
• Electromagnetic properties of heavy mesons in heavy quark limit
• Radiative decays $D^*_{(s)}\to D_{(s)}γ$ in covariant confined quark model
• Strong Decay widths and Coupling Constant of Recent Charm Meson States
• Consistent treatment for valence and nonvalence configurations in semileptonic weak deacys
• Determination of the strong coupling $g_{B^{\ast }B\pi }$ from semi-leptonic $B\to \pi \ell \nu$ decay
• Two photon decays of heavy vector mesons, $B^{\ast }\to B\gamma \gamma$,$D^{\ast }\to D\gamma \gamma$, and the possible determination of the $g_{B^{\ast }(D^{\ast })B(D)\pi }$ and $g_{B^{*}^0B^0γ}$ couplings
• Single Pion Transitions of Charmed Baryons
• Multipole Moments of Heavy Vector and Axial-Vector Mesons in QCD
• Determination of the strong g-coupling and of the ${\mu }_{B^{\ast }B\gamma }-$ strength from two-photon decays of heavy vector mesons
• Photoproduction of charmed vector mesons, $\gamma +N\to {\mathcal{B}}_c+\overline{D^{\ast }}$, with ${\mathcal{B}}_c={\Lambda }_c$ or ${\Sigma }_c$
• Effective Field Theory of Heavy Mesons
• Radiative decays of heavy and light mesons in a quark triangle approach
• Static and dynamic properties of hadronic systems with heavy quarks b and c