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"Strongly interacting matter under external magnetic fields within nonlocal NJL-type models"
V.P. Pagura, D. Gómez Dumm, S. Noguera and N.N. Scoccola
Proc. of the "XIIth Quark Confinement and the Hadron Spectrum" (QCHS XII), Makedonia Palace Conference Centre, Thessaloniki, Greece, August 29-September 3, 2016. Ed. Y. Foka, N. Brambilla and V. Kovalenko
EPJ Web of conferences, Vol.137 (2017) 13012/1-7
We study the behavior of strongly interacting matter under an external magnetic field in the context of nonlocal Nambu-Jona-Lasinio (NJL) -like models. We find that at zero temperature the condensates display the well-known Magnetic Catalysis effect, showing a good quantitative agreement with lattice QCD (LQCD) results. Moreover, when extended to finite temperature we find that (contrary to what happens in the local NJL model) the Inverse Magnetic Catalysis (IMC) effect is naturally incorporated. We also analyze the magnetic susceptibility of the QCD vacuum in the limit of small magnetic field, considering two different model parametrizations, and compare our numerical results to those obtained in other theoretical approaches and in LQCD calculations.
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