Thermal pair production from photon-photon collision: Breit–Wheeler process at finite temperature
Abstract In this paper we examine the pair production through the Breit–Wheeler process $$\gamma ~\gamma \rightarrow e^+ e^-$$ 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 eval...
Main Authors: | , , |
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Format: | Article |
Language: | English |
Published: |
SpringerOpen
2023-12-01
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Series: | European Physical Journal C: Particles and Fields |
Online Access: | https://doi.org/10.1140/epjc/s10052-023-12281-5 |
Summary: | Abstract In this paper we examine the pair production through the Breit–Wheeler process $$\gamma ~\gamma \rightarrow e^+ e^-$$ 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 $$\beta $$ 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. |
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ISSN: | 1434-6052 |