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.

引用

页数：8

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