Symmetries and composite dynamics for the 750 GeV diphoton excess
High Energy Physics - Phenomenology
2016-03-21 v2
Abstract
The ATLAS and CMS experiments at LHC observe small excesses of diphoton events with invariant mass around 750 GeV. Here we study the possibility of nearly parity degenerate and vector-scalar degenerate spectra as well as composite dynamics in 2 scenarios for explaining the excess: Production of a pseudo-scalar via gluon or photon fusion or via decay of a parent particle together with soft additional final states. We discuss possible underlying realizations of the scenarios motivated by dynamical models of electroweak symmetry breaking (without new coloured states) and fermion masses.
Keywords
Cite
@article{arxiv.1601.05357,
title = {Symmetries and composite dynamics for the 750 GeV diphoton excess},
author = {Diogo Buarque Franzosi and Mads T. Frandsen},
journal= {arXiv preprint arXiv:1601.05357},
year = {2016}
}
Comments
11 pages, 8 figures