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Article

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

1
Rudjer Bošković Institute, P.O. Box 180, 10002 Zagreb, Croatia
2
Physics Department, Faculty of Science-PMF, University of Zagreb, Bijenička c. 32, 10000 Zagreb, Croatia
*
Author to whom correspondence should be addressed.
Particles 2020, 3(4), 676-692; https://doi.org/10.3390/particles3040044
Received: 15 July 2020 / Revised: 6 October 2020 / Accepted: 7 October 2020 / Published: 20 October 2020
(This article belongs to the Collection High Energy Physics)
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. View Full-Text
Keywords: out-of-equilibrium quantum field theory; direct photons; dimensional renormalization; finite-time-path formalism out-of-equilibrium quantum field theory; direct photons; dimensional renormalization; finite-time-path formalism
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MDPI and ACS Style

Dadić, I.; Klabučar, D.; Kuić, D. Direct Photons from Hot Quark Matter in Renormalized Finite-Time-Path QED. Particles 2020, 3, 676-692. https://doi.org/10.3390/particles3040044

AMA Style

Dadić I, Klabučar D, Kuić D. Direct Photons from Hot Quark Matter in Renormalized Finite-Time-Path QED. Particles. 2020; 3(4):676-692. https://doi.org/10.3390/particles3040044

Chicago/Turabian Style

Dadić, Ivan, Dubravko Klabučar, and Domagoj Kuić. 2020. "Direct Photons from Hot Quark Matter in Renormalized Finite-Time-Path QED" Particles 3, no. 4: 676-692. https://doi.org/10.3390/particles3040044

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