Unified description of {ital NN} and {ital YN} interactions in a quark model with effective meson-exchange potentials

Journal Article · Fri Mar 01 04:00:00 EST 1996 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.76.2242· OSTI ID:284452

Fujiwara, Y ^[1]; Nakamoto, C ^[2]; Suzuki, Y ^[3]

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1. Department of Physics, Kyoto University, Kyoto 606-01 (Japan)
2. Graduate School of Science and Technology, Niigata University, Niigata 950-21 (Japan)
3. Department of Physics, Niigata University, Niigata 950-21 (Japan)

A simultaneous description of the {ital NN} and {ital YN} interactions is attempted in the resonating-group formulation of the spin-flavor SU{sub 6} quark model, in which the full Fermi-Breit interaction with explicit quark-mass dependence acts between quarks, and all the mesons of scalar and pseudo-scalar nonets couple directly to quarks. An overall agreement with the existing data is obtained with few adjustable parameters. In the {Lambda}{ital p} elastic total cross sections, the cusp structure at the {Sigma}{ital N} threshold is strongly enhanced by the antisymmetric {ital LS}{sup ({minus})} force generated from the Fermi-Breit interaction. {copyright} {ital 1996 The American Physical Society.}

• OSTI ID: 284452
• Journal Information: Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 13 Vol. 76; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
EXCHANGE INTERACTIONS
FLAVOR
MESONS
NUCLEON-HYPERON INTERACTIONS
NUCLEON-NUCLEON INTERACTIONS
QUARK MODEL
QUARKS
SPIN
SU-6 GROUPS
TOTAL CROSS SECTIONS