Magnetic susceptibility of QCD vacuum at finite density from the nonlocal chiral quark model - High Energy Physics - PhenomenologyReport as inadecuate




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Abstract: We present in this talk a recent investigation on the magnetic susceptibilitychi of the QCD vacuum at finite density, utilizing the nonlocal chiral quarkmodel from the instanton vacuum. We take into account the nonzero current-quarkmass m q explicitly to consider the effect of explicit flavor SU3 symmetrybreaking. It turns out that, when we turn on the current-quark mass, chibecomes smaller, indicating less response to the externally inducedelectromagnetic field, in comparison to that for m q=0.



Author: Seung-il Nam, Hyun-Chul Kim

Source: https://arxiv.org/



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