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arXiv · 1512.04929

Knocking on New Physics' door with a Scalar Resonance

Dario Buttazzo·Admir Greljo·David Marzocca
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Abstract

We speculate about the origin of the recent excess at ~750 GeV in diphoton resonance searches observed by the ATLAS and CMS experiments using the first 13 TeV data. Its interpretation as a new scalar resonance produced in gluon fusion and decaying to photons is consistent with all relevant exclusion bounds from the 8 TeV LHC run. We provide a simple phenomenological framework to parametrize the properties of the new resonance and show in a model-independent way that, if the scalar is produced in gluon fusion, additional new colored and charged particles are required. Finally, we discuss some interpretations in various concrete setups, such as a singlet (pseudo-) scalar, composite Higgs, and the MSSM.

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Dario Buttazzo, Admir Greljo, David Marzocca. 2016-03-02. Knocking on New Physics' door with a Scalar Resonance. https://doi.org/10.1140/epjc%2Fs10052-016-3970-7

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