Interactions between octet baryons in the SU(6) quark model

Fujiwara, Y.; Kohno, M.; Nakamoto, C.; Suzuki, Y.

doi:10.1103/PhysRevC.64.054001

Interactions between octet baryons in the SU(6) quark model

Y. Fujiwara
(
- Kyoto U.
)
,
M. Kohno
(
- Kyushu Dental Coll.
)
,
C. Nakamoto
(
- Suzuka Natl. Coll. Tech.
)
,
Y. Suzuki
(
- Niigata U.
)

Jun, 2001

11 pages

Published in:

Phys.Rev.C 64 (2001) 054001

e-Print:

nucl-th/0106052 [nucl-th]

DOI:

10.1103/PhysRevC.64.054001

Report number:

KUNS-1725

View in:

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Abstract:

The baryon-baryon interactions for the complete baryon octet (B_8) are investigated in a unified framework of the resonating-group method, in which the spin-flavor SU_6 quark-model wave functions are employed. Model parameters are determined to reproduce properties of the nucleon-nucleon system and the low-energy cross section data for the hyperon-nucleon interaction. We then proceed to explore B_8 B_8 interactions in the strangeness S=-2, -3 and -4 sectors. The S-wave phase-shift behavior and total cross sections are systematically understood by 1) the spin-flavor SU_6 symmetry, 2) the special role of the pion exchange, and 3) the flavor symmetry breaking.

baryon baryon: interaction
baryon: octet
baryon: wave function
symmetry: SU(6)
quark
resonating group method
baryon baryon: elastic scattering
partial wave analysis: coupled channel
channel cross section: energy dependence
numerical calculations

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