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Determining Higgs couplings with a model-independent analysis of h → γγ

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Abstract

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 γγ 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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Authors and Affiliations

  1. Dipartimento di Fisica, Università di Roma “La Sapienza” and INFN Sezione di Roma, I-00185, Rome, Italy

    Aleksandr Azatov, Roberto Contino, Daniele Del Re, Jamison Galloway, Marco Grassi & Shahram Rahatlou

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  1. Aleksandr Azatov
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  2. Roberto Contino
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  3. Daniele Del Re
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  4. Jamison Galloway
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  5. Marco Grassi
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  6. Shahram Rahatlou
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Correspondence to Roberto Contino.

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ArXiv ePrint: 1204.4817

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Azatov, A., Contino, R., Del Re, D. et al. Determining Higgs couplings with a model-independent analysis of h → γγ . J. High Energ. Phys. 2012, 134 (2012). https://doi.org/10.1007/JHEP06(2012)134

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  • DOI: https://doi.org/10.1007/JHEP06(2012)134

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