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Title: Medium polarization and pairing in asymmetric nuclear matter

Abstract

The many-body theory of asymmetric nuclear matter is developed beyond the Brueckner–Hartree–Fock approximation to incorporate the medium polarization effects. The extension is performed within the Babu–Brown induced interaction theory. After deriving the particle–hole interaction in the form of Landau–Migdal parameters, the effects of the induced component on the symmetry energy are investigated along with the screening of {sup 1}S{sub 0} proton–proton and {sup 3}PF{sub 2} neutron–neutron pairing, which are relevant for the neutron-star cooling. The crossover from repulsive (screening) to attractive (anti-screening) interaction going from pure neutron matter to symmetric nuclear matter is discussed.

Authors:
 [1];  [2];  [3];  [1]
  1. Chinese Academy of Science, Institute of Modern Physics (China)
  2. Dipartimento di Fisica e Astronomia, and INFN-LNS (Italy)
  3. Lanzhou University, School of Nuclear Science and Technology (China)
Publication Date:
OSTI Identifier:
22613999
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physics of Atomic Nuclei; Journal Volume: 80; Journal Issue: 1; Other Information: Copyright (c) 2017 Pleiades Publishing, Ltd.; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
74 ATOMIC AND MOLECULAR PHYSICS; 79 ASTROPHYSICS, COSMOLOGY AND ASTRONOMY; ASYMMETRY; HARTREE-FOCK METHOD; MANY-BODY PROBLEM; NEUTRON STARS; NEUTRON-NEUTRON INTERACTIONS; NUCLEAR MATTER; PAIRING INTERACTIONS; PARTICLE-HOLE MODEL; POLARIZATION; PROTON-PROTON INTERACTIONS; SYMMETRY

Citation Formats

Dong, J. M., Lombardo, U., E-mail: lombardo@lns.infn.it, Zhang, H. F., and Zuo, W. Medium polarization and pairing in asymmetric nuclear matter. United States: N. p., 2017. Web. doi:10.1134/S1063778817010069.
Dong, J. M., Lombardo, U., E-mail: lombardo@lns.infn.it, Zhang, H. F., & Zuo, W. Medium polarization and pairing in asymmetric nuclear matter. United States. doi:10.1134/S1063778817010069.
Dong, J. M., Lombardo, U., E-mail: lombardo@lns.infn.it, Zhang, H. F., and Zuo, W. Sun . "Medium polarization and pairing in asymmetric nuclear matter". United States. doi:10.1134/S1063778817010069.
@article{osti_22613999,
title = {Medium polarization and pairing in asymmetric nuclear matter},
author = {Dong, J. M. and Lombardo, U., E-mail: lombardo@lns.infn.it and Zhang, H. F. and Zuo, W.},
abstractNote = {The many-body theory of asymmetric nuclear matter is developed beyond the Brueckner–Hartree–Fock approximation to incorporate the medium polarization effects. The extension is performed within the Babu–Brown induced interaction theory. After deriving the particle–hole interaction in the form of Landau–Migdal parameters, the effects of the induced component on the symmetry energy are investigated along with the screening of {sup 1}S{sub 0} proton–proton and {sup 3}PF{sub 2} neutron–neutron pairing, which are relevant for the neutron-star cooling. The crossover from repulsive (screening) to attractive (anti-screening) interaction going from pure neutron matter to symmetric nuclear matter is discussed.},
doi = {10.1134/S1063778817010069},
journal = {Physics of Atomic Nuclei},
number = 1,
volume = 80,
place = {United States},
year = {Sun Jan 15 00:00:00 EST 2017},
month = {Sun Jan 15 00:00:00 EST 2017}
}