New LHC bound on low-mass diphoton resonances
High Energy Physics - Phenomenology
2018-09-11 v3 High Energy Physics - Experiment
Abstract
We derive a new bound on diphoton resonances using inclusive diphoton cross section measurements at the LHC, in the so-far poorly constrained mass range between the Upsilon and the SM Higgs. This bound sets the current best limit on axion-like particles that couple to gluons and photons, for masses between 10 and 65 GeV. We also estimate indicative sensitivities of a dedicated diphoton LHC search in the same mass region, at 7, 8 and 14 TeV. As a byproduct of our analysis, we comment on the axion-like particle interpretation of the CMS excesses in low-mass dijet and diphoton searches.
Keywords
Cite
@article{arxiv.1710.01743,
title = {New LHC bound on low-mass diphoton resonances},
author = {Alberto Mariotti and Diego Redigolo and Filippo Sala and Kohsaku Tobioka},
journal= {arXiv preprint arXiv:1710.01743},
year = {2018}
}
Comments
7 pages + appendices, 5 figures, 2 tables. v2: discussion improved, new bound derived also from Tevatron, conclusions unchanged. v3: matches PLB version