scholarly journals THE SHORT RANGE MECHANISM OF N-N INTERACTION IN THE EXTENDED CHIRAL SU(3) QUARK MODEL

2005 ◽  
Vol 20 (08n09) ◽  
pp. 1994-1997 ◽  
Author(s):  
L. R. DAI ◽  
Z. Y. ZHANG ◽  
Y. W. YU

We give the comparisons between the chiral SU (3) quark model and the extended chiral SU (3) quark model. The results show that the phase shifts of NN scattering are very similar. However, the short range mechanisms of nucleon-nucleon interaction are totally different. In the chiral SU (3) quark model, the short range interaction is dominantly from OGE, and in the extended chiral SU (3) quark model, it is dominantly from vector meson exchanges.

2008 ◽  
Vol 23 (27n30) ◽  
pp. 2413-2416 ◽  
Author(s):  
L. R. DAI ◽  
H. ZHANG ◽  
Y. FU ◽  
Z. Y. ZHANG ◽  
Y. W. YU

The hyperon-nucleon scattering processes and some dibaryon states are studied both in the chiral SU(3) quark model and in the extended chiral SU(3) quark model by solving the resonating group method (RGM) equation. We find that the short-range interaction could be described either by the one-gluon exchange or by the vector meson exchange for baryon-baryon system.


1987 ◽  
Vol 62 (2-4) ◽  
pp. 347-353
Author(s):  
I. Lovas ◽  
Erika Lovas ◽  
K. Sailer

1986 ◽  
Vol 39 (4) ◽  
pp. 461 ◽  
Author(s):  
L Berge ◽  
L Petris

A phenomenological NN interaction has been developed in momentum space to fit the elastic scattering phase shifts, the deuteron properties and to saturate nuclear matter. The special features of this interaction are gaussian momentum dependent form factors and the use of only three mesons to characterise the phase shifts.


1976 ◽  
Vol 54 (3) ◽  
pp. 322-332
Author(s):  
A. Z. Capri ◽  
D. Menon ◽  
R. Teshima

The two-nucleon interaction, via the exchange of scalar mesons, is examined in a nonperturbative manner. 'Schrödinger' equations are derived, and nonlocal potentials arise naturally. Both scattering and bound states are examined. A half-off-shell T matrix is obtained, and corresponding phase shifts are evaluated. In the bound state, a variational calculation is employed to determine the coupling constant.


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