https://doi.org/10.1140/epjc/s10052-016-3970-7
Regular Article - Theoretical Physics
Knocking on new physics’ door with a scalar resonance
1
Physik-Institut, Universität Zürich, 8057, Zurich, Switzerland
2
Faculty of Science, University of Sarajevo, Zmaja od Bosne 33-35, 71000, Sarajevo, Bosnia and Herzegovina
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Received:
22
December
2015
Accepted:
22
February
2016
Published online:
2
March
2016
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.
© The Author(s), 2016
