Document Type
Article
Publication Date
10-2-2023
Publication Title
Journal of High Energy Physics
Volume
2023
Issue
2
Pages
1-31
Publisher Name
Springer
Abstract
Accelerating classical systems that couple to a fermion-antifermion pair at the microscopic level can radiate pairs of fermions and lose energy in the process. In this work, we derive the generalization of the Larmor formula for fermion pair radiation. We focus on the case of a point-like classical source in an elliptical orbit that emits fermions through vector and scalar mediators. Ultra-light fermion emission from such systems becomes relevant when the mass of the mediator is larger than the frequency of the periodic motion. This enables us to probe regions of the parameter space that are inaccessible in on-shell bosonic radiation. We apply our results to pulsar binaries with mediators that couple to muons and neutrinos. Using current data on binary period decays, we extract bounds on the parameters of such models.
Recommended Citation
Gavrilova, Margarita; Ghosh, Mitrajyoti; Grossman, Yuval; Tangarife, Walter; and Tsai, Tien-Hsueh, "Fermion Pair Radiation from Accelerating Classical Systems" (2023). Physics: Faculty Publications and Other Works. 109.
https://ecommons.luc.edu/physics_facpubs/109
Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 International License.
Copyright Statement
© The Authors, 2023.
Comments
Author Posting © The Authors, 2023. The article was published open access in the Journal of High Energy Physics, Volume 2023, Number 2, October 2023, https://10.0.3.239/JHEP10(2023)002.