Determining Higgs couplings with a model-independent analysis of h ->gamma gamma

Details Determining Higgs couplings with a model-independent analysis of h ->gamma gamma Determining Higgs couplings with a model-independent analysis of h ->gamma gamma

2012-04-21

arxiv.org/abs/1204.4817v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

24 pages, 4 figures

Scientific paper

Discovering a Higgs boson at the LHC will address a major outstanding issue in particle physics but will also raise many new questions. A concerted effort to determine the couplings of this new state to other Standard Model fields will be of critical importance. Precise knowledge of these couplings can serve as a powerful probe of new physics, and will be needed in attempts to accommodate such a new boson within specific models. In this paper, we present a method for constraining these couplings in a model-independent way, focusing primarily on an exclusive analysis of the gamma gamma final state. We demonstrate the discriminating power of fully exclusive analyses, and discuss ways in which information can be shared between experimentalists and theorists in order to facilitate collaboration in the task of establishing the true origins of any new physics discovered at the LHC.

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