Finite temperature pion vector form factors in Chiral Perturbation Theory

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dc.creatorNicola, A. Gomez
dc.creatorLLanes-Estrada, F. J.
dc.creatorPelaez, J. R.
dc.date2004-05-27
dc.date2004-12-03
dc.date.accessioned2026-07-07T11:43:28Z
dc.date.available2026-07-07T11:43:28Z
dc.descriptionWe discuss the thermal behaviour of the pion vector form factors and calculate them in one-loop Chiral Perturbation Theory. The perturbative result is used to analyze the $T$-dependent electromagnetic pion charge radius, obtaining a rough estimate of the deconfinement critical temperature. Imposing thermal unitarity, we generate the $ρ$ resonance pole for the form factor in the center of mass frame. The $ρ$ peak height in the modulus of the form factor decreases for increasing temperature, while its width increases and the peak position is slightly shifted downwards for $T\simeq$ 150 MeV. These results point in the direction suggested by many analysis of dilepton production data in relativistic heavy ion collisions.
dc.description15 pages, 4 figures, final version to appear in Phys.Lett.B, added references and comments, abstract changed
dc.identifierhttps://arxiv.org/abs/hep-ph/0405273
dc.identifierhttp://arxiv.org/abs/hep-ph/0405273
dc.identifierPhys.Lett.B606:351-360,2005
dc.identifierdoi:10.1016/j.physletb.2004.12.008
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/201251
dc.subjectHigh Energy Physics - Phenomenology
dc.subjectNuclear Theory
dc.titleFinite temperature pion vector form factors in Chiral Perturbation Theory
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