{delta}K,{lambda}K, and {sigma}K states in the extended chiral SU(3) quark model

Journal Article · Thu Dec 15 04:00:00 EST 2005 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PhysRevC.72.068201· OSTI ID:20771165

Huang, F ^[1]; Zhang, Z Y ^[2]

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1. CCAST (World Laboratory), Post office Box 8730, Beijing 100080 (China)
2. Institute of High Energy Physics, Post office Box 918-4, Beijing 100049 (China)

By use of the resonating group method, the {delta}K,{lambda}K, and {sigma}K states are further dynamically studied in the extended chiral SU(3) quark model based on our previous work. Similar to the results given by the original chiral SU(3) quark model, the calculated results here still show that the interactions of {delta}K with isospin I=1 and {sigma}K with isospin I=1/2 are attractive, which can consequently lead to {delta}K and {sigma}K quasibound states. When the channel coupling of {lambda}K and {sigma}K is considered, the calculated phase shifts show a sharp resonance between the thresholds of these two channels with spin parity J{sup P}=1/2{sup -}.

• OSTI ID: 20771165
• Journal Information: Physical Review. C, Nuclear Physics, Journal Name: Physical Review. C, Nuclear Physics Journal Issue: 6 Vol. 72; ISSN 0556-2813; ISSN PRVCAN
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
CHIRALITY
COUPLING
DELTA BARYONS
ISOSPIN
KAONS
LAMBDA BARYONS
PARITY
PHASE SHIFT
QUARK MODEL
QUASIBOUND STATE
RESONANCE
RESONATING-GROUP METHOD
SIGMA BARYONS
SPIN
SU-3 GROUPS