Fifth Forces from QCD Axions Scale Differently.

Bauer, Martin; Rostagni, Guillaume

Abstract

We reexamine the low-energy potential for a macroscopic fifth force generated from the exchange of two axions. The shift symmetry of the linear axion interactions leads to a potential falling off as V(r)∼1/r^{5}. We find that in the case of the QCD axion higher-order terms in the Lagrangian break the shift symmetry and lead to the dominant contribution to the potential scaling as V(r)∼1/r^{3}. These terms are generated by the same physics responsible for the axion mass, and therefore the new contributions to the potential induce a different force for external nucleons and leptons. We demonstrate how this result affects the sensitivity of searches for new long-range forces.

Citation

Bauer, M., & Rostagni, G. (2024). Fifth Forces from QCD Axions Scale Differently. Physical Review Letters, 132(10), Article 101802. https://doi.org/10.1103/PhysRevLett.132.101802

• Journal Article Type: Article
• Acceptance Date: Jan 29, 2024
• Online Publication Date: Mar 7, 2024
• Publication Date: Mar 8, 2024
• Deposit Date: May 21, 2024
• Publicly Available Date: May 21, 2024
• Journal: Physical review letters
• Print ISSN: 0031-9007
• Electronic ISSN: 1079-7114
• Publisher: American Physical Society
• Peer Reviewed: Peer Reviewed
• Volume: 132
• Issue: 10
• Article Number: 101802
• DOI: https://doi.org/10.1103/PhysRevLett.132.101802
• Public URL: https://durham-repository.worktribe.com/output/2378897