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Approximation of the microscopic effective pairing interaction by the off-shell T matrix for free nucleon-nucleon scattering

  • On the 85th Anniversary of V.V. Vladimirsky
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Abstract

The effective pairing interaction in the 1 S 0 channel as calculated microscopically within the Brueckner method for a planar slab of nuclear matter by using the separable version of the Paris nucleon-nucleon potential is investigated. The effective interaction is determined for the model space including all negative-energy single-particle states. An analysis is performed for two values of the chemical potential, μ=−8 and −4 MeV. It is shown that, to a high precision, the effective interaction can be approximated by the off-shell T matrix for free nucleon-nucleon interaction, the T matrix in question being taken at a negative value of the total energy of two nucleons E=2μ.

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Translated from Yadernaya Fizika, Vol. 63, No. 8, 2000, pp. 1454–1464.

Original Russian Text Copyright © 2000 by Baldo, Lombardo, Saperstein, Zverev.

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Baldo, M., Lombardo, U., Saperstein, É.E. et al. Approximation of the microscopic effective pairing interaction by the off-shell T matrix for free nucleon-nucleon scattering. Phys. Atom. Nuclei 63, 1377–1386 (2000). https://doi.org/10.1134/1.1307460

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  • DOI: https://doi.org/10.1134/1.1307460

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