2016/01/20 by Diogo Buarque Franzosi, Franzosi, Diogo Buarque, Mads T. Frandsen +1
Physics and Astronomy · #Cosmology and Gravitation Theories #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ph
paper · pdf · doi:10.48550/arxiv.1601.05357
11 pages, 8 figures
openalex publication_date 2016/01/20 · arxiv created 2016/03/18 · arxiv updated 2016/03/21 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/04
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.