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Symmetry 2015, 7(1), 15-31; https://doi.org/10.3390/sym7010015

Effect of Tensor Correlations on the Density Dependence of the Nuclear Symmetry Energy

1
Center of Computational Physics, Departement of Physics, University of Coimbra, Coimbra PT-3004-516, Portugal
2
Departament d'Estructura i Constituents de la Matèria and Institut de Ciències del Cosmos, Universitat de Barcelona, Avda. Diagonal 647, Barcelona ES-08028, Spain
*
Author to whom correspondence should be addressed.
Academic Editor: Dinesh Shetty
Received: 30 September 2014 / Accepted: 8 December 2014 / Published: 29 December 2014
(This article belongs to the Special Issue Nuclear Symmetry Energy)
Full-Text   |   PDF [417 KB, uploaded 29 December 2014]

Abstract

We analyze the effect of the tensor force and other components of the nucleon-nucleon interaction on the nuclear symmetry energy and its density dependence by using the Hellmann–Feynman theorem. The analysis is performed within the microscopic Brueckner–Hartree–Fock approach using the Argonne V18 potential plus a Urbana IX three-nucleon force. Our results show that the potential part of the nuclear Hamiltonian, and in particular its tensor component, gives the largest contribution to the symmetry energy. The decomposition of the symmetry energy into a kinetic part and a potential energy part provides physical insight on the correlated nature of the system, indicating that pure neutron matter is less correlated than symmetric nuclear matter. View Full-Text
Keywords: symmetry energy; tensor force; correlations symmetry energy; tensor force; correlations
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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Vidaña, I.; Providência, C.; Polls, A. Effect of Tensor Correlations on the Density Dependence of the Nuclear Symmetry Energy. Symmetry 2015, 7, 15-31.

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