{Sigma}{sub c}D and {Lambda}{sub c}D states in a chiral quark model

Journal Article · Fri Jul 15 04:00:00 EDT 2011 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PHYSREVC.84.015203· OSTI ID:21596608

Wang, W L; Zhang, Z Y; Zou, B S ^[1]; Huang, F ^[2]

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1. Institute of High Energy Physics, CAS, P. O. Box 918-4, Beijing 100049 (China)
2. Department of Physics and Astronomy, University of Georgia, Athens, Georgia 30602 (United States)

The S-wave {Sigma}{sub c}D and {Lambda}{sub c}D states with isospin I=1/2 and spin S=1/2 are dynamically investigated within the framework of a chiral constituent quark model by solving a resonating group method equation. The results show that the interaction between {Sigma}{sub c} and D is attractive, which consequently results in a {Sigma}{sub c}D bound state with a binding energy of about 5-42 MeV, unlike the case of the {Lambda}{sub c}D state, which has a repulsive interaction and thus is unbound. The channel-coupling effect of {Sigma}{sub c}D and {Lambda}{sub c}D is found to be negligible owing to the fact that the gap between the {Sigma}{sub c}D and {Lambda}{sub c}D thresholds is relatively large and the {Sigma}{sub c}D and {Lambda}{sub c}D transition interaction is weak.

• OSTI ID: 21596608
• Journal Information: Physical Review. C, Nuclear Physics, Journal Name: Physical Review. C, Nuclear Physics Journal Issue: 1 Vol. 84; ISSN 0556-2813; ISSN PRVCAN
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ANGULAR MOMENTUM
BINDING ENERGY
BOUND STATE
CALCULATION METHODS
CHIRALITY
COMPOSITE MODELS
COUPLING
ENERGY
ENERGY RANGE
INTERACTIONS
ISOSPIN
MATHEMATICAL MODELS
MEV RANGE
PARTIAL WAVES
PARTICLE MODELS
PARTICLE PROPERTIES
QUARK MODEL
RESONATING-GROUP METHOD
S WAVES
SPIN
VARIATIONAL METHODS