scholarly journals Calculation of the nucleon-nucleon interaction due to vector-meson exchange

1996 ◽  
Vol 54 (2) ◽  
pp. 487-494 ◽  
Author(s):  
L. S. Celenza ◽  
C. M. Shakin ◽  
Wei-Dong Sun
Keyword(s):  
Vector Meson ◽  
Nucleon Nucleon ◽  
Meson Exchange ◽  
Nucleon Interaction ◽  
Nucleon Nucleon Interaction ◽  
Vector Meson Exchange

scholarly journals Consistent Treatment of Pion Exchange Force and Meson versus Quark Dynamics in the Nucleon?Nucleon Interaction

1993 ◽  
Vol 46 (6) ◽  
pp. 737
Author(s):  
GQ Liu ◽  
AW Thomas
Keyword(s):  
Vector Meson ◽  
Short Range ◽  
Coupling Model ◽  
Nucleon Nucleon ◽  
Pion Exchange ◽  
Meson Exchange ◽  
Exchange Potential ◽  
Exchange Force ◽  
Gluon Exchange ◽  
Vector Meson Exchange

To distinguish explicit quark effects from meson exchange in the NN interaction, it is necessary to splice the long-range meson exchange forces and short-distance dynamics due to quarks. However, in most quark model studies the short-range part of the pion exchange is usually treated differently, which makes it difficult to get a uniform picture of the short-range dynamics. We make a comparison between meson exchange and quark-gluon dynamics using the same pion exchange potential based on a quark-pion coupling model. The roles of vector meson exchange and gluon exchange in the NN interaction are compared by calculating NN phase parameters. It is shown that, with this consistent one-pion exchange force, the vector meson exchange gives a better fit to the data. This suggests that non-perturbative mechanisms responsible for meson exchange may need more careful handling to supplement the usual one-gluon exchange mechanism in describing the NN interaction.

Meson exchange model for the nucleon-nucleon interaction

1975 ◽  
Vol 249 (3) ◽  
pp. 397-444 ◽  
Author(s):  
A.D. Jackson ◽  
D.O. Riska ◽  
B. Verwest
Keyword(s):  
Nucleon Nucleon ◽  
Exchange Model ◽  
Meson Exchange ◽  
Nucleon Interaction ◽  
Nucleon Nucleon Interaction

Quark degrees of freedom and nuclear matter saturation

2019 ◽  
Vol 34 (39) ◽  
pp. 1950322
Author(s):  
Marcello Baldo ◽  
Zahra Asadi Aghbolaghi ◽  
Isaac Vidaña ◽  
Mohsen Bigdeli
Keyword(s):  
Nuclear Matter ◽  
Degrees Of Freedom ◽  
Nucleon Nucleon ◽  
Meson Exchange ◽  
Nucleon Interaction ◽  
S Wave ◽  
Nucleon Potential ◽  
Quark Interaction ◽  
Exchange Processes ◽  
Nucleon Nucleon Interaction

It has been found in previous works [M. Baldo and K. Fukukawa, Phys. Rev. Lett. 113, 241501 (2014); K. Fukukawa, M. Baldo, G. F. Burgio, L. Lo Monaco and H.-J. Schulze, Phys. Rev. 92, 065802 (2015)] that the nucleon–nucleon potential of [Y. Fujiwara, M. Kohno, C. Nakamoto and Y. Suzuki Phys. Rev. C 64, 054001 (2001); Y. Fujiwara et al., Phys. Rev. C 65, 014002 (2001)] gives an accurate saturation point in symmetric nuclear matter once the three hole-line contributions are included in the Brueckner–Bethe–Goldstone expansion without the addition of three-body forces in the nuclear Hamiltonian. The potential is based on a quark model of nucleons and on the quark–quark interaction together with quark exchange processes. These features introduce an intrinsic nonlocality of the nucleon–nucleon interaction. In order to clarify the role of the quark degrees of freedom and of the nonlocality in the saturation, we perform a comparative study of this potential and the traditional meson exchange models, exemplified in the CD-Bonn potential. We find that at the Brueckner–Hartree–Fock approximation, which corresponds to the two hole-line level of approximation, the dominant modification of the nucleon–nucleon interaction with respect to CD-Bonn is incorporated in the s-wave channels, where the quark degrees of freedom should be more relevant, in particular for the short range quark exchange processes. However, when the three hole-line contribution is included, we find that the higher partial waves play a relevant role, mainly in the term that describes the effect of the medium on the off-shell propagation of the nucleon.

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
Keyword(s):  
Vector Meson ◽  
Quark Model ◽  
Short Range ◽  
Nucleon Nucleon ◽  
Phase Shifts ◽  
Short Range Interaction ◽  
Nucleon Interaction ◽  
Range Interaction ◽  
Nucleon Nucleon Interaction

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.

scholarly journals Alternative approach to σ-meson exchange in the nucleon-nucleon interaction

2007 ◽  
Vol 76 (1) ◽  
Author(s):  
Lingzhi Chen ◽  
Hourong Pang ◽  
Hongxia Huang ◽  
Jialun Ping ◽  
Fan Wang
Keyword(s):  
Nucleon Nucleon ◽  
Meson Exchange ◽  
Nucleon Interaction ◽  
Alternative Approach ◽  
Nucleon Nucleon Interaction

Nucleon-nucleon interaction from meson exchange and nucleonic structure

1994 ◽  
Vol 49 (5) ◽  
pp. 2370-2378 ◽  
Author(s):  
D. Plümper ◽  
J. Flender ◽  
M. F. Gari
Keyword(s):  
Nucleon Nucleon ◽  
Meson Exchange ◽  
Nucleon Interaction ◽  
Nucleon Nucleon Interaction
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