We analyse the momentum and density dependence of the ph interaction in self-consistent RPA calculations of electromagnetic reactions with Skyrme forces. First, we calculate the V00ph and V01ph spin-isospin components in nuclear matter for an SK3 interaction. At the nuclear surface, they have decreasing values with increasing q-values up to momenta q=3 fm-1. As a second point, we show that the predictions of the 12C(e, e') charge response at 400 MeV/c remain practically unchanged when the zero-range quadratic momentum dependence of the SK3 interaction is replaced by the momentum dependence associated with a Yukawa short-ranged force.
Momentum and density dependence of the ph interaction in continuum RPA calculations with Skyrme forces / M. Cavinato, M. Marangoni, A. M. Saruis. - In: PHYSICS LETTERS. SECTION B. - ISSN 0370-2693. - 213:2(1988), pp. 111-114. [10.1016/0370-2693(88)91008-8]
Momentum and density dependence of the ph interaction in continuum RPA calculations with Skyrme forces
M. CavinatoPrimo
;
1988
Abstract
We analyse the momentum and density dependence of the ph interaction in self-consistent RPA calculations of electromagnetic reactions with Skyrme forces. First, we calculate the V00ph and V01ph spin-isospin components in nuclear matter for an SK3 interaction. At the nuclear surface, they have decreasing values with increasing q-values up to momenta q=3 fm-1. As a second point, we show that the predictions of the 12C(e, e') charge response at 400 MeV/c remain practically unchanged when the zero-range quadratic momentum dependence of the SK3 interaction is replaced by the momentum dependence associated with a Yukawa short-ranged force.
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