Medium polarization and pairing in asymmetric nuclear matter
- Authors: Dong J.M.1, Lombardo U.2, Zhang H.F.3, Zuo W.1
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Affiliations:
- Institute of Modern Physics
- Dipartimento di Fisica e Astronomia, and INFN-LNS
- School of Nuclear Science and Technology
- Issue: Vol 80, No 1 (2017)
- Pages: 77-85
- Section: Nuclei
- URL: https://journal-vniispk.ru/1063-7788/article/view/191495
- DOI: https://doi.org/10.1134/S1063778817010069
- ID: 191495
Cite item
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 1S0 proton–proton and 3PF2 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.
About the authors
J. M. Dong
Institute of Modern Physics
Email: lombardo@lns.infn.it
China, Lanzhou
U. Lombardo
Dipartimento di Fisica e Astronomia, and INFN-LNS
Author for correspondence.
Email: lombardo@lns.infn.it
Italy, Catania
H. F. Zhang
School of Nuclear Science and Technology
Email: lombardo@lns.infn.it
China, Lanzhou
W. Zuo
Institute of Modern Physics
Email: lombardo@lns.infn.it
China, Lanzhou
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