Bound state problem ofS-wave heavy quark meson-antimeson systems

2008/10/31 by Yan-Rui Liu, ZY Zhang, Zong-Ye Zhang · 2 citations
Physics and Astronomy · #Particle physics theoretical and experimental studies #Physics of Superconductivity and Magnetism #Quantum Chromodynamics and Particle Interactions #hep-ex #hep-lat #hep-ph #nucl-th

paper · pdf · doi:10.1103/physrevc.80.015208

published as Phys.Rev.C80:015208,2009 · 8 pages, 7 tables, accepted by Phys. Rev. C

arxiv created 2009/07/10 · openalex publication_date 2009/07/27 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28

Abstract

We investigated systematically whether the S-wave (Qq) meson and the (Qq) meson may form S-wave bound states in a chiral SU(3) quark model by solving the resonating group method equation. Here Q=c or b and q=u,d, or s. Our preliminary calculation disfavors the existence of I=(1)/(2)(Ql)\text\ensuremath-(Qs) molecules (l=u,d) but favors the existence of isoscalar BB, B^*B^*(J=2), and BB^*(C=+) molecules. The existence of isovector (charm-anticharm) and (charm-bottom) molecules is also disfavored. Therefore the resonance-like structure Z⁺(4051) is unlikely to be an S-wave D^*D^* molecule.

Citations

• The D threshold resonance
• Observation and Properties of theX(3872)Decaying toJ/ψπ+π−inpp¯Collisions ats=1.96 TeV
• X(3872)and the bound state problem ofD0D¯*0(D¯0D*0)in a chiral quark model
• POSSIBLE NEW RESONANCE AT THE D^* D^* THRESHOLD IN e+e- ANNIHILATION
• Contribution of the DK continuum in the QCD sum rule for DsJ(2317)
• IsZ+(4430)a loosely bound molecular state?
• The possible interpretations of Y(4260)
• Is X(3872) really a molecular state?
• Observation of a Narrow Meson State Decaying toDs+π0at a Mass of2.32 GeV/c2
• Study of theB−→J/ψK−π+π−decay and measurement of theB−→X(3872)K−branching fraction
• Observation of a New Narrow Charmonium State in Exclusive B+-->K+ pi+pi- J/psi Decays
• Charmonium

Cited by

• ΣcD¯andΛcD¯states in a chiral quark model
• Possible Bound States in the D^∗ D^∗/B^∗ B^∗ and D^∗ D^∗/ B^∗ B^∗ Systems within the Bethe-Salpeter Formalism

Related

• X(3872)and the bound state problem ofD0D¯*0(D¯0D*0)in a chiral quark model
• Possible S-wave ND^(*) and N B^(*) bound states in a chiral quark model
• A chiral quark model study of Z⁺(4430) in the molecular picture
• Spectrum of S- and P-wave ccqq' (q,q' = u, d, s) systems in a chiral SU(3) quark model
• Dynamical study of S-wave QQqq system