Direct Photons from Hot Quark Matter in Renormalized Finite-Time-Path QED

Autor:	Dadić, Ivan, Klabučar, Dubravko, Kuić, Domagoj
Rok vydání:	2020
Předmět:	High Energy Physics - Phenomenology High Energy Physics - Theory
Zdroj:	Particles 3 (2020) 676-692
Druh dokumentu:	Working Paper
DOI:	10.3390/particles3040044
Popis:	Within the finite-time-path out-of-equilibrium quantum field theory (QFT), we calculate direct photon emission from early stages of heavy ion collisions, from a narrow window, in which uncertainty relations are still important and they provide a new mechanism for production of photons. The basic difference with respect to earlier calculations, leading to diverging results, is that we use renormalized QED of quarks and photons. Our result is a finite contribution that is consistent with uncertainty relations. Comment: 17 pages, 1 figure
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2012.00863 Zobrazit plný text záznamu View this record from Arxiv