Work

Topological susceptibility and axion properties in the presence of a strong magnetic field within the three-flavor NJL model

Year: 2025

Type: article

Abstract: We analyze the topological susceptibility and the axion properties in the presence of an external uniform magnetic field, considering a three-flavor Nambu-Jona-Lasinio model that includes strong C P violation through a ’t Hooft-like flavor mixing term. Both thermal and finite density effects are studied for magnetic fields up to 1 GeV 2 , and the corresponding phase transitions are analyzed. To capture the inverse magnetic catalysis effect at finite temperatures and densities, a magnetic-field-dependent coupling constant is considered. Our analytical and numerical results are compared with those previously obtained from lattice QCD, chiral perturbation theory, and other effective models.

Source: Physical review. D/Physical review. D.

DOI: 10.1103/physrevd.111.074001

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

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

Language: English

Topic: Quantum Chromodynamics and Particle Interactions

Subfield: Nuclear and High Energy Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: hybrid

Funders: Consejo Nacional de Investigaciones Científicas y Técnicas, Universidad Nacional de La Plata, Agencia Nacional de Promoción Científica y Tecnológica

Awards: G1698464866, G4466274728, G5795484761