Pairing in exotic neutron rich nuclei around the drip line and in the crust of neutron stars - IN2P3 - Institut national de physique nucléaire et de physique des particules Access content directly
Journal Articles Physical Review C Year : 2013

Pairing in exotic neutron rich nuclei around the drip line and in the crust of neutron stars

Abstract

Exotic and drip-line nuclei as well as nuclei immersed in a low density gas of neutrons in the outer crust of neutron stars are systematically investigated with respect to their neutron pairing properties. This is done using Skyrme density-functional and different pairing forces such as a density-dependent contact interaction and a separable form of a finite-range Gogny interaction. Hartree-Fock-Bogoliubov and BCS theories are compared. It is found that neutron pairing is reduced towards the drip line while overcast by strong shell effects. Furthermore resonances in the continuum can have an important effect counterbalancing the tendency of reduction and leading to a persistence of pairing at the drip line. It is also shown that in these systems the difference between HFB and BCS approaches can be qualitatively large.

Dates and versions

in2p3-00804120 , version 1 (25-03-2013)

Identifiers

Cite

A. Pastore, J. Margueron, P. Schuck, X. Viñas. Pairing in exotic neutron rich nuclei around the drip line and in the crust of neutron stars. Physical Review C, 2013, 88, pp.034314. ⟨10.1103/PhysRevC.88.034314⟩. ⟨in2p3-00804120⟩
27 View
0 Download

Altmetric

Share

Gmail Facebook X LinkedIn More