Quark model study of strange dibaryon resonances

Journal Article · Sat Jan 15 00:00:00 EST 2011 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PHYSREVC.83.015202· OSTI ID:21499369

Mei, Chen; Hongxia, Huang; Jialun, Ping; Fan, Wang ^[1]

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1. Department of Physics, Nanjing Normal University, Nanjing 210097 (China)

Two nonrelativistic quark models, a chiral quark model and a quark delocalization color screening model, are employed to calculate the baryon-baryon scattering phase shifts to look for dibaryon resonances with strangeness by means of the resonating group method. The two models predict similar-strangeness dibaryon resonance states. No resonance appears in the octet-octet channels, but resonance did exist in the octet-decuplet and decuplet-decuplet channels. These resonances were distributed in the energy region 2400-2800 MeV. The widths are generally smaller than 10 MeV but increased to tens of MeV after taking into account the off-shell widths of decuplet baryons. These resonances all appear in the D-wave nucleon-hyperon and hyperon-hyperon scatterings and can be searched for through hyperon-nucleon scatterings with hyperon beams and hyperon-hyperon vertex and masses reconstruction with the data collected by relativistic heavy ion collisions.

• OSTI ID: 21499369
• Journal Information: Physical Review. C, Nuclear Physics, Vol. 83, Issue 1; Other Information: DOI: 10.1103/PhysRevC.83.015202; (c) 2011 American Institute of Physics; ISSN 0556-2813
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BARYON-BARYON INTERACTIONS
CHIRALITY
COLOR MODEL
D WAVES
DIBARYONS
GEV RANGE 01-10
HEAVY ION REACTIONS
HYPERON BEAMS
MASS
NUCLEON-HYPERON INTERACTIONS
NUCLEONS
PHASE SHIFT
QUARK MODEL
QUARKS
RELATIVISTIC RANGE
RESONANCE
RESONATING-GROUP METHOD
SCATTERING
STRANGENESS
BARYONS
BEAMS
CALCULATION METHODS
COMPOSITE MODELS
ELEMENTARY PARTICLES
ENERGY RANGE
FERMIONS
GEV RANGE
HADRON-HADRON INTERACTIONS
HADRONS
INTERACTIONS
MATHEMATICAL MODELS
NUCLEAR REACTIONS
PARTIAL WAVES
PARTICLE BEAMS
PARTICLE INTERACTIONS
PARTICLE MODELS
PARTICLE PROPERTIES
VARIATIONAL METHODS