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Surface behaviour of the pairing gap in a slab of nuclear matter

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Abstract.

The surface behavior of the pairing gap previously studied for semi-infinite nuclear matter is analyzed in the slab geometry. The gap-shape function is calculated in two cases: a) pairing with the Gogny force in a hard-wall potential and b) pairing with the separable Paris interaction in a Saxon-Woods mean-field potential. It is shown that the surface features are preserved in the case of slab geometry, being almost independent of the width of the slab. It is also demonstrated that the surface enhancement is strengthened as the absolute value of chemical potential \(\vert\mu\vert\) decreases which simulates the approach to the nucleon drip line.-1

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Authors and Affiliations

  1. Sezione di Catania, INFN, 57 Corso Italia, I-95129, Catania, Italy

    M. Baldo

  2. Ecole Navale, Lanvéoc-Poulmic, 29240, Brest-Naval, France

    M. Farine

  3. INFN-LNS, 44 Via S. Sofia, I-95123, Catania, Italy

    U. Lombardo

  4. Dipartimento di Fisica, 57 Corso Italia, I-95129, Catania, Italy

    U. Lombardo

  5. Kurchatov Institute, 123182, Moscow, Russia

    E. E. Saperstein & M. V. Zverev

  6. Insitut de Physique Nucléaire, IN2P3-CNRS, Université Paris-Sud, F-91406, Orsay-Cédex, France

    P. Schuck

Authors
  1. M. Baldo
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  2. M. Farine
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  3. U. Lombardo
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  4. E. E. Saperstein
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  5. P. Schuck
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  6. M. V. Zverev
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Corresponding author

Correspondence to M. Baldo.

Additional information

Communicated by G. Orlandini

Received: 3 March 2003, Published online: 30 September 2003

PACS:

21.30.-x Nuclear forces - 21.60.-n Nuclear structure models and methods - 21.65.+f Nuclear matter - 26.60.+c Nuclear matter aspects of neutron stars

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Baldo, M., Farine, M., Lombardo, U. et al. Surface behaviour of the pairing gap in a slab of nuclear matter. Eur. Phys. J. A 18, 17–23 (2003). https://doi.org/10.1140/epja/i2003-10064-8

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  • DOI: https://doi.org/10.1140/epja/i2003-10064-8

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