https://doi.org/10.1140/epjp/s13360-025-06229-9
Regular Article
Non-Hermitian electron–positron annihilation under thermal effects
1
Programa de Pós-Graduação em Física, Instituto de Física, Universidade Federal de Mato Grosso, Cuiabá, Brazil
2
Departamento de Física, Universidade Federal de Lavras, 37203-202, Lavras, MG, Brazil
a
alesandroferreira@fisica.ufmt.br
Received:
30
January
2025
Accepted:
18
March
2025
Published online:
8
April
2025
In this paper we examine the thermal effects into the 
scattering in a non-Hermitian extension of QED. We compute the thermal contributions to this scattering cross section within the Thermo Field Dynamics approach. In order to highlight the non-Hermitian effects we have considered some limits of interest: i) zero-temperature limit and high-energy limit and ii) high-temperature regime. Since this type of scattering possesses accurate experimental data for the cross section (for muon and tau at the final state) it can be used to set stringent bounds upon the non-Hermitian parameters.
Copyright comment Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
© The Author(s), under exclusive licence to Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature 2025
Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
