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Title: Functional renormalization group study of nuclear and neutron matter

A chiral model based on nucleons interacting via boson exchange is investigated. Fluctuation effects are included consistently beyond the mean-field approximation in the framework of the functional renormalization group. The liquid-gas phase transition of symmetric nuclear matter is studied in detail. No sign of a chiral restoration transition is found up to temperatures of about 100 MeV and densities of at least three times the density of normal nuclear matter. Moreover, the model is extended to asymmetric nuclear matter and the constraints from neutron star observations are discussed.
Authors:
;  [1] ;  [2]
  1. Physik Department, Technische Universität München, D-85747 Garching (Germany)
  2. (Trento) (Italy)
Publication Date:
OSTI Identifier:
22499079
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1701; Journal Issue: 1; Conference: 11. conference on quark confinement and hadron spectrum, Saint Petersburg (Russian Federation), 8-12 Sep 2014; Other Information: (c) 2016 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; APPROXIMATIONS; ASYMMETRY; BOSON-EXCHANGE MODELS; CHIRALITY; DENSITY; FLUCTUATIONS; LIMITING VALUES; MEAN-FIELD THEORY; MEV RANGE 10-100; NEUTRON STARS; NEUTRONS; NUCLEAR MATTER; PHASE TRANSFORMATIONS; RENORMALIZATION; SYMMETRY