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Cold isospin asymmetric baryonic rich matter in nonlocal NJL-like models

J. P. Carlomagno1,*, D. Gómez Dumm1, and N. N. Scoccola2,3

  • 1IFLP, CONICET—Departamento de Física, Facultad de Ciencias Exactas, Universidad Nacional de La Plata, C.C. 67, 1900 La Plata, Argentina
  • 2CONICET, Rivadavia 1917, 1033 Buenos Aires, Argentina
  • 3Physics Department, Comisión Nacional de Energía Atómica, Avenida del Libertador 8250, 1429 Buenos Aires, Argentina

  • *carlomagno@fisica.unlp.edu.ar
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Phys. Rev. D 109, 094041 – Published 28 May, 2024

DOI: https://doi.org/10.1103/PhysRevD.109.094041

Abstract

We study the features of low energy strong interactions for a system at zero temperature and finite baryon and isospin chemical potentials, in the framework of a Nambu–Jona-Lasinio-like model that includes nonlocal four-point interactions. We analyze the phase transitions corresponding to chiral symmetry restoration and pion condensation, comparing our results with those obtained from local NJL-like models and lattice QCD calculations.

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Phys. Rev. D 109, 094041– Published 28 May, 2024
  • Received 26 February 2024
  • Revised 25 April 2024
  • Accepted 3 May 2024
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