Work

Phase structure of magnetized quark matter at imaginary chemical potential

Year: 2026

Type: preprint

Abstract: We investigate the phase structure of magnetized quark matter within a nonlocal SU(2) Polyakov-Nambu-Jona-Lasinio model. Our work focuses on the interplay between temperature and imaginary chemical potential in the presence of an external uniform magnetic field, with emphasis on the deconfinement and Roberge-Weiss transitions. We analyze the dependence of the relevant critical temperatures on the external field, and we explore the sensitivity of the phase structure to different Polyakov loop effective potentials. Our results show qualitative agreement with lattice QCD findings, reproducing inverse magnetic catalysis in the chiral sector and a decreasing behavior of the Roberge-Weiss transition temperature with increasing magnetic field.

Source: arXiv (Cornell University)

DOI: 10.48550/arxiv.2609.01376

Authors: Carlomagno, J. P., Dumm, D. Gómez, Scoccola, N. N.

Institutions: Consejo Nacional de Investigaciones Científicas y Técnicas, Instituto de Física La Plata, Comisión Nacional de Energía Atómica

Language: English

Topic: High-Energy Particle Collisions Research

Subfield: Nuclear and High Energy Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: green

Funder: Consejo Nacional de Investigaciones Científicas y Técnicas

Award: G4721439447

OpenAlex ID: W7206206599

Cites: 45

Cited by:

Related to: 10