Knocking on new physics’ door with a scalar resonance
By D. Buttazzo, Admir Greljo, D. Marzocca. 2015
151 citations recorded by the source corpus.
We speculate about the origin of the recent excess at $$\sim $$∼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.
Subfields: Nuclear and High Energy Physics
View Paper: https://www.semanticscholar.org/paper/c5a5417f1d748c852aa1a2005d68ff906ca8ffae
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In Nuclear and High Energy Physics
Citations in the corpus
- A composite model for the 750 GeV diphoton excess (2015, unknown): “Since the observed excess corresponds to σ(pp→ φ→ γγ) ' (6± 2) fb [29, 30], this gives”
- Physics of leptoquarks in precision experiments and at particle colliders (2016, unknown): “, 8, via effective interactions [295, 293], L ⊃ cG α3 12πmS S GμνG A,μν + cγγ αem 4πmS SFμνF μν .”
- A pseudoscalar decaying to photon pairs in the early LHC Run 2 data (2015, background): “These studies have looked at the effective theory for a spin-0 resonance [3–5], the effective theory including an additional field for dark matter [6, 7], adding vector-like quarks to enhance the interactions of the resonance with photons and gluons [8, 9], adding a confining sector that is vector-l”