Properties of magnetized neutral pions at zero and finite temperature in nonlocal chiral quark models

The behavior of π0 meson properties in the presence of a uniform external magnetic field is studied in the context of a nonlocal extension of the Polyakov-Nambu-Jona-Lasinio model. The analysis includes the π0 mass, the effective π0-quark coupling and the pion-to-vacuum hadronic form factors, both a...

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Bibliographic Details
Published in:Physical review. D 2020-06, Vol.101 (11), p.1, Article 116018
Main Authors: Gómez Dumm, D., Izzo Villafañe, M. F., Scoccola, N. N.
Format: Article
Language:English
Subjects:
Form factors
Magnetic properties
Pions
Quark models
Quarks
Restoration
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Summary:The behavior of π0 meson properties in the presence of a uniform external magnetic field is studied in the context of a nonlocal extension of the Polyakov-Nambu-Jona-Lasinio model. The analysis includes the π0 mass, the effective π0-quark coupling and the pion-to-vacuum hadronic form factors, both at zero and finite temperature. Numerical results are compared with previous calculations carried out within the local NJL model, when available. The validity of chiral relations and the features of deconfinement and chiral symmetry restoration transitions are discussed.
ISSN:2470-0010
2470-0029
DOI:10.1103/PhysRevD.101.116018