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Pairing and Short-Range Correlations in Nuclear Systems

Rios Huguet, Arnau, Polls, A and Dickhoff, WH (2017) Pairing and Short-Range Correlations in Nuclear Systems Journal of Low Temperature Physics.

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Abstract

The structure and density dependence of the pairing gap in infinite matter is relevant for astrophysical phenomena and provides a starting point for the discussion of pairing properties in nuclear structure. Short-range correlations can significantly deplete the available single-particle strength around the Fermi surface and thus provide a reduction mechanism of the pairing gap. Here, we study this effect in the singlet and triplet channels of both neutron matter and symmetric nuclear matter. Our calculations use phase-shift equivalent interactions and chiral two-body and three-body interactions as a starting point. We find an unambiguous reduction of the gap in all channels with very small dependence on the NN force in the singlet neutron matter and the triplet nuclear matter channel. In the latter channel, SRC alone provide a 50% reduction of the pairing gap.

Item Type: Article
Divisions : Faculty of Engineering and Physical Sciences > Physics
Authors :
NameEmailORCID
Rios Huguet, ArnauA.Rios@surrey.ac.ukUNSPECIFIED
Polls, AUNSPECIFIEDUNSPECIFIED
Dickhoff, WHUNSPECIFIEDUNSPECIFIED
Date : 20 October 2017
Identification Number : 10.1007/s10909-017-1818-7
Copyright Disclaimer : © The Author(s) 2017. This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
Uncontrolled Keywords : Nuclear physics · Superfluidity · Nuclear matter · Neutron matter
Depositing User : Melanie Hughes
Date Deposited : 24 Oct 2017 08:45
Last Modified : 24 Oct 2017 08:45
URI: http://epubs.surrey.ac.uk/id/eprint/842631

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