Pairing in high-density neutron matter including short- and long-range correlations
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Rios Huguet, Arnau, Ding, D, Dussan, H, Dickhoff, WH, Witte, SJ, Carbone, A and Polls, A (2016) Pairing in high-density neutron matter including short- and long-range correlations Physical Review C: Nuclear Physics, 94, 025802.
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16-2-Ding,Rios,Dussan,Dickhoff,Witte,Carbone,Polls-Pairing in high-density neutron matter including short- and long-range correlations.pdf - Accepted version Manuscript Available under License : See the attached licence file. Download (1MB) | Preview |
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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.
| Item Type: | Article | ||||||||||||||||||||||||
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| Subjects : | Physics | ||||||||||||||||||||||||
| Divisions : | Faculty of Engineering and Physical Sciences > Physics | ||||||||||||||||||||||||
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| Date : | 11 August 2016 | ||||||||||||||||||||||||
| Funders : | STFC | ||||||||||||||||||||||||
| Identification Number : | 10.1103/PhysRevC.94.025802 | ||||||||||||||||||||||||
| Copyright Disclaimer : | Copyright 2016 American Physical Society | ||||||||||||||||||||||||
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| Depositing User : | Symplectic Elements | ||||||||||||||||||||||||
| Date Deposited : | 06 Sep 2016 14:27 | ||||||||||||||||||||||||
| Last Modified : | 07 Jul 2017 09:14 | ||||||||||||||||||||||||
| URI: | http://epubs.surrey.ac.uk/id/eprint/811693 |
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