Coupled-channel analysis of theDandDsmesons

2004/09/30 by Yu. A. Simonov, J. A. Tjon · 2 citations
Mathematics · Physics and Astronomy · #Algorithm #High-Energy Particle Collisions Research #Lagrangian #Mathematical physics #Mathematics #Particle physics #Particle physics theoretical and experimental studies #Physics #Quantum Chromodynamics and Particle Interactions #hep-ex #hep-lat #hep-ph

paper · pdf · doi:10.1103/physrevd.70.114013

published as Phys.Rev.D70:114013,2004 · 9 pages, 2 figures

arxiv created 2004/09/30 · openalex publication_date 2004/12/08 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05

Abstract

The shift of the p-wave D_s meson mass due to coupling to the DK channel is calculated using a QCD string model and the chiral Lagrangian. As a result the original Qq mass, 2.490 MeV, generically calculated in the relativistic quark models is shifted down to the experimental value 2317 MeV. With the same Lagrangian the shift of the radial excited 1^\ensuremath- level is much smaller, while the total width \ensuremathΓ>100 MeV and the width ratio is in contradiction with the D^*(2632) state observed by SELEX Collaboration.

Citations

• Options for the SELEX state
• CLASSIFICATION OF THE SCALAR MESONS: A STRANGE POLE EXPEDITION INTO CHARM AND BEAUTY TERRITORY
• Mass of DsJ*(2317) and coupled channel effect
• A note on possible interpretations for the DSJ+(2632) observed by SELEX
• Light meson radial Regge trajectories
• Measurements of theDsJResonance Properties
• Observation of a Narrow Meson State Decaying toDs+π0at a Mass of2.32 GeV/c2
• Charmonium: Comparison with experiment
• Big Bang Nucleosynthesis (in "The Review of Particle Properties" 2004)
• Multichannel Calculation ofDs*Vector States and theDsJ+(2632)Resonance

Cited by

• P-wave charmed-strange mesons
• Structure of the axial-vector mesonDs1(2460) and the strong coupling constant with the light-cone QCD sum rules