X(3872)and the bound state problem ofD0D¯*0(D¯0D*0)in a chiral quark model

2008/05/31 by Yan-Rui Liu, ZY Zhang, Zong-Ye Zhang · 2 citations
Physics and Astronomy · #Black Holes and Theoretical Physics #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ex #hep-ph #nucl-ex #nucl-th

paper · pdf · doi:10.1103/physrevc.79.035206

published as Phys.Rev.C79:035206,2009 · 8 pages, 2 figures, 7 tables, published in Phys. Rev. C

openalex publication_date 2009/03/20 · arxiv created 2009/05/07 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28

Abstract

The bound state problem of D⁰D^*0(D⁰D^*0) is relevant to the molecular interpretation of the X(3872). We investigated this problem in a chiral quark model by solving the resonating group method equation. We found the system is unbound through S-wave \ensuremathπ and \ensuremathσ interactions. The inclusion of \ensuremathρ and \ensuremathω meson exchanges is helpful to the formation of a molecule. Because the binding energy relies on the coupling constants, we cannot draw a definite conclusion as to whether a molecular state exists in the D⁰D^*0(D⁰D^*0) system. When moving on to the bottom counterpart, we obtained an S-wave BB^* state.

Citations

• The D threshold resonance
• Estimate of the partial width forX(3872)intopp¯
• IsZ+(4430)a loosely bound molecular state?
• Weakly-bound hadronic molecule near a 3-body threshold
• Is X(3872) really a molecular state?
• Constituent quark model study of the meson spectra
• Effects ofS-wave thresholds
• Charmonium

Cited by

• Bound state problem ofS-wave heavy quark meson-antimeson systems
• ΣcD¯andΛcD¯states in a chiral quark model