Collider constraints on interactions of dark energy with the Standard Model

Brax, Philippe, Burrage, Clare, Davis, Anne-Christine, Seery, David and Weltman, Amanda (2009) Collider constraints on interactions of dark energy with the Standard Model. Journal of High Energy Physics, 2009 (9). ISSN 11266708

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We study models in which a light scalar dark energy particle couples to the gauge fields of the electroweak force, the photon, Z, and W1 bosons. Our analysis applies to a large class of interacting dark energy models, including those in which the dark energy mass can be adjusted to evade fifth-force bounds by the so-called ''chameleon'' mechanism. We conclude that - with the usual choice of Higgs sector - electroweak precision observables are screened from the indirect effects of dark energy, making such corrections effectively unobservable at present-day colliders, and limiting the dark energy discovery potential of any future International Linear Collider. We show that a similar screening effect applies to processes mediated by flavour-changing neutral currents, which can be traced to the Glashow-Iliopoulos-Maiani mechanism. However, Higgs boson production at the Large Hadron Collider via weak boson fusion may receive observable corrections

Item Type: Article
Additional Information: Author list in alphabetical order
Schools and Departments: School of Mathematical and Physical Sciences > Physics and Astronomy
Depositing User: David Seery
Date Deposited: 06 Feb 2012 18:30
Last Modified: 13 Mar 2017 23:38

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