Please use this identifier to cite or link to this item:
http://hdl.handle.net/2445/128311
Title: | Pairing in high-density neutron matter including short- and long-range correlations |
Author: | Ding, D. Ríos Huguet, Arnau Dussan, H. Dickhoff, Willem H. Carbone, A. Polls Martí, Artur Witte, S. J. |
Keywords: | Energia nuclear Constel·lacions Neutrons Nuclear energy Constellations Neutrons |
Issue Date: | 11-Aug-2016 |
Publisher: | American Physical Society |
Abstract: | Pairing gaps in neutron matter need to be computed in a wide range of densities to address open questions in neutron-star phenomenology. Traditionally, the Bardeen-Cooper-Schrieffer approach has been used to compute gaps from bare nucleon-nucleon interactions. Here we incorporate the influence of short-and long-range correlations in the pairing gaps. Short-range correlations are treated, including the appropriate fragmentation of single-particle states, and substantially suppress the gaps. Long-range correlations dress the pairing interaction via density and spin modes and provide a relatively small correction. We use different interactions, some with three-body forces, as a starting point to control for any systematic effects. Results are relevant for neutron-star cooling scenarios, in particular in view of the recent observational data on Cassiopeia A. |
Note: | Reproducció del document publicat a: https://doi.org/10.1103/PhysRevC.94.025802 |
It is part of: | Physical Review C, 2016, vol. 94, num. 2, p. 025802-1-025802-17 |
URI: | http://hdl.handle.net/2445/128311 |
Related resource: | https://doi.org/10.1103/PhysRevC.94.025802 |
ISSN: | 2469-9985 |
Appears in Collections: | Articles publicats en revistes (Institut de Ciències del Cosmos (ICCUB)) Articles publicats en revistes (Física Quàntica i Astrofísica) |
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667659.pdf | 1.7 MB | Adobe PDF | View/Open |
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