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- Title
Minimal composite dynamics versus axion origin of the diphoton excess.
- Authors
Molinaro, Emiliano; Sannino, Francesco; Vignaroli, Natascia
- Abstract
ATLAS and CMS observe deviations from the expected background in the diphoton invariant mass searches of new resonances around 750 GeV. We show that a simple realization in terms of a new pseudoscalar state can accommodate the observations. The model leads to further footprints that can be soon observed. The new state can be interpreted both as an axion or as a highly natural composite state arising from minimal models of dynamical electroweak (EW) symmetry breaking. We further show how to disentangle the two scenarios. Beyond the possible explanation of the diphoton excess, the results show that it is possible to directly test and constrain composite dynamics via processes stemming from its distinctive topological sector.
- Subjects
AXIONS; PHOTONS; REST mass (Relativity); ELECTROWEAK interactions; SYMMETRY breaking
- Publication
Modern Physics Letters A, 2016, Vol 31, Issue 26, p-1
- ISSN
0217-7323
- Publication type
Article
- DOI
10.1142/S0217732316501558