Constraining disformally coupled scalar fields

Brax, Philippe; Burrage, Clare

Abstract

Light scalar fields can naturally couple disformally to matter fields. Static, nonrelativistic sources do not generate a classical field profile for a disformally coupled scalar, and so such scalars are free from the constraints on the existence of fifth forces that are so restrictive for conformally coupled scalars. In this paper we show that disformally coupled scalars can still be studied and constrained through their microscopic interactions with fermions and photons, both in terrestrial laboratories and from observations of stars. The strongest constraint on the coupling scale comes from mono-photon searches at the LHC and requires M≳102 GeV.

Citation

Brax, P., & Burrage, C. (2014). Constraining disformally coupled scalar fields. Physical Review D, D90(10), Article 104009. https://doi.org/10.1103/PhysRevD.90.104009

• Journal Article Type: Article
• Acceptance Date: Nov 7, 2014
• Publication Date: Nov 7, 2014
• Deposit Date: Apr 20, 2017
• Publicly Available Date: Apr 20, 2017
• Journal: Physical Review D
• Print ISSN: 2470-0010
• Electronic ISSN: 2470-0029
• Publisher: American Physical Society
• Peer Reviewed: Peer Reviewed
• Volume: D90
• Issue: 10
• Article Number: 104009
• DOI: https://doi.org/10.1103/PhysRevD.90.104009
• Public URL: https://nottingham-repository.worktribe.com/output/739878
• Publisher URL: https://journals.aps.org/prd/pdf/10.1103/PhysRevD.90.104009
• Contract Date: Apr 20, 2017