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Skyrme models and nuclear matter equation of state

Adam, Christoph, Haberichter, Mareike, Wereszczynski, Andrzej (2015) Skyrme models and nuclear matter equation of state. Physical Review C: Nuclear Physics, 92 . 055807. ISSN 0556-2813. E-ISSN 1089-490X. (doi:0556-2813) (KAR id:50530)

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Abstract

We investigate the role of pressure in a class of generalised Skyrme models. We introduce pressure as the trace of the spatial part of the energy-momentum tensor and show that it obeys the usual thermodynamical relation. Then, we compute analytically the mean-field equation of state in the high and medium pressure regimes by applying topological bounds on compact domains. The equation of state is further investigated numerically for the charge one skyrmions. We identify which term in a generalised Skyrme model is responsible for which part in the equation of state. Further, we compare our findings with the corresponding results in the Walecka model.

Item Type: Article
DOI/Identification number: 0556-2813
Subjects: Q Science > QC Physics > QC20 Mathematical Physics
Divisions: Faculties > Sciences > School of Mathematics Statistics and Actuarial Science
Faculties > Sciences > School of Mathematics Statistics and Actuarial Science > Applied Mathematics
Depositing User: Mareike Haberichter
Date Deposited: 18 Sep 2015 01:32 UTC
Last Modified: 29 May 2019 16:01 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/50530 (The current URI for this page, for reference purposes)
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