Document Type
Article
Publication Date
2-8-2023
Publication Title
Journal of High Energy Physics (JHEP)
Volume
2023
Pages
1-35
Publisher Name
Springer
Abstract
The Standard Model predicts a long-range force, proportional to G2 F /r5, between fermions due to the exchange of a pair of neutrinos. This quantum force is feeble and has not been observed yet. In this paper, we compute this force in the presence of neutrino backgrounds, both for isotropic and directional background neutrinos. We find that for the case of directional background the force can have a 1/r dependence and it can be significantly enhanced compared to the vacuum case. In particular, background effects caused by reactor, solar, and supernova neutrinos enhance the force by many orders of magnitude. The enhancement, however, occurs only in the direction parallel to the direction of the background neutrinos. We discuss the experimental prospects of detecting the neutrino force in neutrino backgrounds and find that the effect is close to the available sensitivity of the current fifth force experiments. Yet, the angular spread of the neutrino flux and that of the test masses reduce the strength of this force. The results are encouraging and a detailed experimental study is called for to check if the effect can be probed.
Recommended Citation
Ghosh, Mitrajyoti; Grossman, Yuval; Tangarife, Walter; Xu, Xun-Jie; and Yu, Bingrong, "Neutrino Forces in Neutrino Backgrounds" (2023). Physics: Faculty Publications and Other Works. 104.
https://ecommons.luc.edu/physics_facpubs/104
Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 International License.
Copyright Statement
©The Author(s), 2023.
Comments
Author Posting ©The Author(s), 2023. This article is posted here by permission of Springer for personal use and redistribution. This article was published open access in Journal of High Energy Physics, VOL.2023, (February 8, 2023), https://doi.org/10.1007/JHEP02(2023)092