QCD vacuum structure in strong magnetic fields

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We study the response of the QCD vacuum to strong magnetic fields, using a potential model for the quark-antiquark interaction. We find that production of spin-polarized u-ubar pairs is energetically favorable for fields B > B_crit \sim 10 GeV^2. We contrast the resulting u-ubar condensate with the quark condensate which is present at zero magnetic field, and we estimate the corresponding magnetization as a function of B.
16 pages, LaTeX, 3 eps figures. v2: references added. v3: fixed typo

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High Energy Physics - Phenomenology, High Energy Physics - Theory

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http://salesiana.dossiersoluciones.com/handle/123456789/207590

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/hep-ph/0204120
 http://arxiv.org/abs/hep-ph/0204120
 Phys.Rev.D66:014004,2002
 doi:10.1103/PhysRevD.66.014004

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arXiv