2026-06-27T15:47:57Zhttps://docta.ucm.es/rest/oai/request

oai:docta.ucm.es:20.500.14352/508572023-08-25T16:03:34Zcom_20.500.14352_14col_20.500.14352_15

Llanes Estrada, Felipe José Gómez Nicola, Ángel Peláez Sagredo, José Ramón 2023-06-20T10:38:17Z 2023-06-20T10:38:17Z 2005-01-27 0370-2693 10.1016/j.physletb.2004.12.008 https://hdl.handle.net/20.500.14352/50857 http://dx.doi.org/10.1016/j.physletb.2004.12.008 http://arxiv.org/abs/hep-ph/0405273 http://www.sciencedirect.com We 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 decreasesfor increasing temperature, while its width increases and the peak position is slightly shifted downwards for T _ 150 MeV. These results point in the direction suggested by many analysis of dilepton production data in relativistic heavy ion collisions. eng open access Finite temperature pion vector form factors in chiral perturbation theory journal article