Microscopic predictions of the nuclear matter liquid-gas phase transition

Arianna Carbone, Artur Polls, and Arnau Rios
Phys. Rev. C 98, 025804 – Published 28 August 2018

Abstract

We present first-principles predictions for the liquid-gas phase transition in symmetric nuclear matter employing both two- and three-nucleon chiral interactions. Our discussion focuses on the sources of systematic errors in microscopic quantum many-body predictions. On the one hand, we test uncertainties of our results arising from changes in the construction of chiral Hamiltonians. We use five different chiral forces with consistently derived three-nucleon interactions. On the other hand, we compare the ladder resummation in the self-consistent Green's functions approach to finite-temperature Brueckner-Hartree-Fock calculations. We find that systematics due to Hamiltonians dominate over many-body uncertainties. Based on this wide pool of calculations, we estimate that the critical temperature is Tc=16±2 MeV, in reasonable agreement with experimental results. We also find that there is a strong correlation between the critical temperature and the saturation energy in microscopic many-body simulations.

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  • Received 29 June 2018

DOI:https://doi.org/10.1103/PhysRevC.98.025804

©2018 American Physical Society

Physics Subject Headings (PhySH)

Nuclear Physics

Authors & Affiliations

Arianna Carbone1,*, Artur Polls2,†, and Arnau Rios3,‡

  • 1European Centre for Theoretical Studies in Nuclear Physics and Related Areas (ECT*) and Fondazione Bruno Kessler, Strada delle Tabarelle 286, I-38123 Villazzano (TN), Italy
  • 2Departament de Física Quàntica i Astrofísica and Institut de Ciències del Cosmos (ICCUB), Universitat de Barcelona, E-08028 Barcelona, Spain
  • 3Department of Physics, Faculty of Engineering and Physical Sciences, University of Surrey, Guildford, Surrey GU2 7XH, United Kingdom

  • *acarbone@ectstar.eu
  • artur@fqa.ub.edu
  • a.rios@surrey.ac.uk

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Vol. 98, Iss. 2 — August 2018

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