Thermal pair production from photon-photon collision: Breit–Wheeler process at finite temperature

In this paper we examine the pair production through the Breit–Wheeler process γ γ → e + e - in a thermal background. We compute the thermal contribution to the Breit–Wheeler differential cross section within the thermofield dynamics formalism. We evaluate in details the cross section for this proce...

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Bibliographic Details
Published in:The European physical journal. C, Particles and fields Particles and fields, 2023-12, Vol.83 (12), p.1113-8, Article 1113
Main Authors: Cabral, D. S., Santos, A. F., Bufalo, R.
Format: Article
Language:English
Subjects:
Astronomy
Astrophysics and Cosmology
Atoms
Charged particles
Cross-sections
Electromagnetism
Elementary Particles
Hadrons
Heavy Ions
High temperature
Lasers
Measurement Science and Instrumentation
Nuclear Energy
Nuclear Physics
Pair production
Photons
Physics
Physics and Astronomy
Quantum Field Theories
Quantum Field Theory
Regular Article - Theoretical Physics
String Theory
Temperature effects
Thermodynamic properties
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Summary:In this paper we examine the pair production through the Breit–Wheeler process γ γ → e + e - in a thermal background. We compute the thermal contribution to the Breit–Wheeler differential cross section within the thermofield dynamics formalism. We evaluate in details the cross section for this process, which possess a surprisingly simple expression valid for any temperature β , from which we discuss some physically relevant aspects. We also consider the high temperature regime of the cross section in order to have a better understanding about its thermal behavior.
ISSN:1434-6052
1434-6044
1434-6052
DOI:10.1140/epjc/s10052-023-12281-5