scholarly journals Renormalization of the leading-order chiral nucleon-nucleon interaction and bulk properties of nuclear matter

2010 ◽  
Vol 81 (2) ◽  
Author(s):  
R. Machleidt ◽  
P. Liu ◽  
D. R. Entem ◽  
E. Ruiz Arriola
Keyword(s):  
Nuclear Matter ◽  
Nucleon Nucleon ◽  
Leading Order ◽  
Nucleon Interaction ◽  
Bulk Properties ◽  
Nucleon Nucleon Interaction

scholarly journals Breaking of Charge Independence of Nucleon–Nucleon Interaction and Bulk Properties of Nuclear Matter

2003 ◽  
Vol 18 (21) ◽  
pp. 3629-3636 ◽  
Author(s):  
G. H. Bordbar
Keyword(s):  
Nuclear Matter ◽  
Nucleon Nucleon ◽  
Energy Contribution ◽  
Nucleon Interaction ◽  
Bulk Properties ◽  
Nucleon Potential ◽  
Charge Independence ◽  
Charge Dependence ◽  
Nucleon Nucleon Interaction ◽  
Charge Independence Breaking

The effects of charge independence breaking of nucleon–nucleon interaction on the bulk properties of nuclear matter are investigated. Our results indicate that at high densities, the inclusion of charge dependence in the nucleon–nucleon potential affects the bulk properties of nuclear matter. However, at low densities, this effect is not considerable. It is seen that the change of our results for the nuclear matter calculations due to the breaking of the charge independence increases by increasing density. It is shown that the energy contribution of the 1S0 channel is sensitive to considering the charge dependence in the nucleon–nucleon interaction. It is indicated that the effects of charge independence breaking on the calculated equation of state of nuclear matter can be ignored.

The L-G Phase Transition and the Nucleon–Nucleon Interaction Potential within QHD-I Model

2003 ◽  
Vol 18 (29) ◽  
pp. 2029-2037
Author(s):  
Jin Meng ◽  
Jiarong Li ◽  
Jisheng Chen
Keyword(s):  
Phase Transition ◽  
Nuclear Matter ◽  
Interaction Potential ◽  
Yukawa Potential ◽  
Nucleon Nucleon ◽  
Nucleon Interaction ◽  
Nucleon System ◽  
Debye Mass ◽  
Dense Nuclear Matter ◽  
Nucleon Nucleon Interaction

The nucleon–nucleon interaction potential in hot/dense nuclear matter is studied within the QHD-I model. We find that a Yukawa potential, which contains attractive and repulsive terms, acting between nucleons is modified by the variation of the Debye mass. In particular, a nucleon system described by this Yukawa potential will be unbound at some critical T and μ. The critical point is very close to that of the L-G phase transition given in the literatures.

PAIRING INTERACTION POTENTIAL WITH REALISTIC FORCE IN NEUTRON AND NUCLEAR MATTER

2006 ◽  
Vol 15 (08) ◽  
pp. 1769-1777
Author(s):  
CAIWAN SHEN
Keyword(s):  
Nuclear Matter ◽  
Interaction Potential ◽  
Effective Interaction ◽  
Nucleon Nucleon ◽  
Pairing Interaction ◽  
Nucleon Interaction ◽  
Explicit Formulas ◽  
Nucleon Nucleon Interaction ◽  
Realistic Force

Using the realistic nucleon-nucleon interaction, we studied the pairing interaction potential for 1S0 and 3S1 channel in neutron and nuclear matter. The explicit formulas are given for the calculation. It is found that the screening using realistic force is much smaller than that using effective interaction, for instance, Gogny force or G-matrix.

Nucleon-nucleon interaction in nuclear matter

1977 ◽  
Vol 16 (2) ◽  
pp. 777-783 ◽  
Author(s):  
Sadhan K. Adhikari ◽  
H. T. Coelho ◽  
F. A. Bezerra Coutinho ◽  
Y. Nogami
Keyword(s):  
Nuclear Matter ◽  
Nucleon Nucleon ◽  
Nucleon Interaction ◽  
Nucleon Nucleon Interaction

scholarly journals Leading order relativistic chiral nucleon-nucleon interaction

2018 ◽  
Vol 42 (1) ◽  
pp. 014103 ◽  
Author(s):  
Xiu-Lei Ren ◽  
Kai-Wen Li ◽  
Li-Sheng Geng ◽  
Bingwei Long ◽  
Peter Ring ◽  
...  
Keyword(s):  
Nucleon Nucleon ◽  
Leading Order ◽  
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.

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