Higgs production as a probe of chameleon dark energy

Journal Article · Sat May 15 04:00:00 EDT 2010 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.81.103524· OSTI ID:21409712

Brax, Philippe ^[1]; Burrage, Clare ^[2]; Davis, Anne-Christine; Seery, David ^[3]; Weltman, Amanda ^[3]

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1. Institut de Physique Theorique, CEA, IPhT, CNRS, URA2306, F-91191 Gif-sur-Yvette cedex (France)
2. Theory Group, Deutsches Elektronen-Synchrotron DESY, D-22603, Hamburg (Germany)
3. Department of Applied Mathematics and Theoretical Physics, Centre for Mathematical Sciences, University of Cambridge, Wilberforce Road, Cambridge, CB3 0WA (United Kingdom)

In this paper we study various particle physics effects of a light, scalar dark energy field with chameleonlike couplings to matter. We show that a chameleon model with only matter couplings will induce a coupling to photons. In doing so, we derive the first microphysical realization of a chameleonic dark energy model coupled to the electromagnetic field strength. This analysis provides additional motivation for current and near-future tests of axionlike and chameleon particles. We find a new bound on the coupling strength of chameleons in uniformly coupled models. We also study the effect of chameleon fields on Higgs production, which is relevant for hadron colliders. These are expected to manufacture Higgs particles through weak boson fusion, or associated production with a Z or W{sup {+-}.} We show that, like the Tevatron, the LHC will not be able to rule out or observe chameleons through this mechanism, because gauge invariance of the low energy Lagrangian suppresses the corrections that may arise.

• OSTI ID: 21409712
• Journal Information: Physical Review. D, Particles Fields, Journal Name: Physical Review. D, Particles Fields Journal Issue: 10 Vol. 81; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ACCELERATORS
BOSONS
CERN LHC
CORRECTIONS
COUPLING
CYCLIC ACCELERATORS
ELECTROMAGNETIC FIELDS
ELEMENTARY PARTICLES
FERMILAB TEVATRON
FUNCTIONS
GAUGE INVARIANCE
HIGGS BOSONS
HIGGS MODEL
INVARIANCE PRINCIPLES
LAGRANGIAN FUNCTION
MASSLESS PARTICLES
MATHEMATICAL MODELS
MATTER
NONLUMINOUS MATTER
PARTICLE MODELS
PARTICLES
PHOTONS
POSTULATED PARTICLES
STORAGE RINGS
SYNCHROTRONS