ATLAS hunts for a new "soft" signature of the dark sector
ATLAS publication with major contributions from our group
12.06.2026
The ATLAS Collaboration releases its first dedicated search for soft unclustered energy patterns (SUEPs) – an elusive possible signature of new physics phenomena. The analysis targets a unique muon-rich experimental signature to substantially extend sensitivity to hidden phenomena beyond previous results.
The paper titled "Search for soft unclustered energy patterns containing muons in the final state in pp collisions at √s = 13 TeV with the ATLAS detector " was prepared with major contributions by A.Lory, was put on the arXiv and is submitted to the Journal of High Energy Physics JHEP for publication.
Using data collected during 2015-2018, the analysis targets SUEP signatures via gluon-gluon fusion production of a scalar mediator in Hidden Valley scenarios. Strong exclusion limits are set on the product of the mediator production cross section and the branching fraction for its decay into a SUEP.
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