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Constraining disformally coupled scalar fields

Brax, Philippe; Burrage, Clare

Authors

Philippe Brax



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.

Journal Article Type Article
Publication Date Nov 7, 2014
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
APA6 Citation Brax, P., & Burrage, C. (2014). Constraining disformally coupled scalar fields. Physical Review D, D90(10), https://doi.org/10.1103/PhysRevD.90.104009
DOI https://doi.org/10.1103/PhysRevD.90.104009
Publisher URL https://journals.aps.org/prd/pdf/10.1103/PhysRevD.90.104009
Copyright Statement Copyright information regarding this work can be found at the following address: http://eprints.nottingh.../end_user_agreement.pdf

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Copyright Statement
Copyright information regarding this work can be found at the following address: http://eprints.nottingham.ac.uk/end_user_agreement.pdf





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