Quantum fluctuations of chiral condensate in the analytically regularized Nambu--Jona-Lasinio model

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dc.creatorRochev, V. E.
dc.date2003-11-29
dc.date.accessioned2026-07-07T03:51:26Z
dc.date.available2026-07-07T03:51:26Z
dc.descriptionThe problem of quantum fluctuations of the chiral condensate due to next-to-leading contributions is investigated. Meson contributions to the chiral condensate are calculated in the Nambu--Jona-Lasinio model with the analytical (dimensional) regularization in a framework of the mean-field expansion. The pion contribution can be significant, while the sigma-meson contribution is small in the regime of physical values of the model parameters. Non-pole contributions are also estimated and found to be small.
dc.description5 pages, no figures, Talk given at XVII International Workshop on High Energy Physics and Quantum Field Theory (QFTHEP'2003), Samara--Saratov, 4-11 Sept. 2003
dc.identifierhttps://arxiv.org/abs/hep-ph/0312004
dc.identifierhttp://arxiv.org/abs/hep-ph/0312004
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/43091
dc.subjectHigh Energy Physics - Phenomenology
dc.titleQuantum fluctuations of chiral condensate in the analytically regularized Nambu--Jona-Lasinio model
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