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Gogny interactions with tensor terms

  • Regular Article - Theoretical Physics
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Abstract.

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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Authors and Affiliations

  1. Departamento de Física Atómica, Molecular y Nuclear, Universidad de Granada, E-18071, Granada, Spain

    M. Anguiano, A. M. Lallena & R. N. Bernard

  2. Dipartimento di Matematica e Fisica “E. De Giorgi”, Università del Salento and INFN Sezione di Lecce, Via Arnesano, I-73100, Lecce, Italy

    G. Co’

  3. Dipartimento di Matematica e Fisica “E. De Giorgi”, Università del Salento, Via Arnesano, I-73100, Lecce, Italy

    V. De Donno

  4. Institut de Physique Nucléaire, IN2P3-CNRS, Université Paris-Sud, F-91406, Orsay Cedex, France

    M. Grasso

Authors
  1. M. Anguiano
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  2. A. M. Lallena
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  3. G. Co’
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  4. V. De Donno
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  5. M. Grasso
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  6. R. N. Bernard
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Correspondence to M. Anguiano.

Additional information

Communicated by N. Alamanos

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Anguiano, M., Lallena, A.M., Co’, G. et al. Gogny interactions with tensor terms. Eur. Phys. J. A 52, 183 (2016). https://doi.org/10.1140/epja/i2016-16183-1

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  • DOI: https://doi.org/10.1140/epja/i2016-16183-1

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