Gogny interactions with tensor terms

被引：11
作者：
Anguiano, M. [1 ]
Lallena, A. M. [1 ]
Co', G. [2 ,3 ]
De Donno, V. [2 ]
Grasso, M. [4 ]
Bernard, R. N. [1 ]
机构：
[1] Univ Granada, Dept Fis Atom Mol & Nucl, E-18071 Granada, Spain
[2] Univ Salento, Dipartimento Matemat & Fis E De Giorgi, Via Arnesano, I-73100 Lecce, Italy
[3] Ist Nazl Fis Nucl, Sez Lecce, Via Arnesano, I-73100 Lecce, Italy
[4] Univ Paris 11, CNRS, IN2P3, Inst Phys Nucl, F-91406 Orsay, France
来源：
EUROPEAN PHYSICAL JOURNAL A | 2016年 / 52卷 / 07期
关键词：
STRENGTH;
D O I：
10.1140/epja/i2016-16183-1
中图分类号：
O57 [原子核物理学、高能物理学];
学科分类号：
070202 ;
摘要：
We present a perturbative approach to include tensor terms in the Gogny interaction. We do not change the values of the usual parameterisations, with the only exception of the spin-orbit term, and we add tensor terms whose only free parameters are the strengths of the interactions. We identify observables sensitive to the presence of the tensor force in Hartree-Fock, Hartree-Fock-Bogoliubov and random phase approximation calculations. We show the need of including two tensor contributions, at least: a pure tensor term and a tensor-isospin term. We show results relevant for the inclusion of the tensor term for single-particle energies, charge-conserving magnetic excitations and Gamow-Teller excitations.
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页数：8
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