LHC signatures of scalar dark energy

Philippe Brax, Clare Burrage, Christoph Englert, and Michael Spannowsky

Phys. Rev. D 94, 084054 – Published 31 October 2016

Abstract

Scalar dark energy fields that couple to the standard model can give rise to observable signatures at the LHC. In this work, we show that $t \bar{t} + missing$ energy and monojet searches are suitable probes in the limit where the dark energy scalar is stable on collider distances. We discuss the prospects of distinguishing the dark energy character of new physics signals from dark matter signatures and the possibility of probing the self-interactions of the dark energy sector.

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Received 26 April 2016

DOI:https://doi.org/10.1103/PhysRevD.94.084054

Physics Subject Headings (PhySH)

Alternative gravity theories Dark energy Particle decays Particle interactions Particle production

Gravitation, Cosmology & AstrophysicsParticles & Fields

Authors & Affiliations

Philippe Brax^1,*, Clare Burrage^2,†, Christoph Englert^3,‡, and Michael Spannowsky^4,§

¹Institut de Physique Théorique, Université Paris-Saclay, CEA, CNRS, F-91191 Gif/Yvette Cedex, France
²School of Physics and Astronomy, University of Nottingham, Nottingham NG7 2RD, United Kingdom
³SUPA, School of Physics and Astronomy, University of Glasgow, Glasgow G12 8QQ, United Kingdom
⁴Institute for Particle Physics Phenomenology, Department of Physics, Durham University, Durham DH1 3LE, United Kingdom

^*philippe.brax@cea.fr
^†clare.burrage@nottingham.ac.uk
^‡christoph.englert@glasgow.ac.uk
^§michael.spannowsky@durham.ac.uk

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Issue

Vol. 94, Iss. 8 — 15 October 2016

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Physical Review D

covering particles, fields, gravitation, and cosmology