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Search for low-mass resonances decaying into two jets and produced in association with a photon using pp collisions at vs=13TeV with the ATLAS detector
journal contribution
posted on 2023-06-09, 18:54 authored by N L Abraham, Benedict AllbrookeBenedict Allbrooke, Lily AsquithLily Asquith, Alessandro CerriAlessandro Cerri, Samuel Jones, Antonella De SantoAntonella De Santo, Fabrizio SalvatoreFabrizio Salvatore, Kate ShawKate Shaw, Thomas StevensonThomas Stevenson, K Suruliz, Mark SuttonMark Sutton, Fabio Tresoldi, Iacopo Vivarelli, Fabrizio Trovato, E Winkels, The ATLAS Collaboration, othersA search is performed for localised excesses in dijet mass distributions of low-dijet-mass events produced in association with a high transverse energy photon. The search uses up to 79.8fb-1of LHC proton–proton collisions collected by the ATLAS experiment at a centre-of-mass energy of 13TeV during 2015–2017. Two variants are presented: one which makes no jet flavour requirements and one which requires both jets to be tagged as b-jets. The observed mass distributions are consistent with multi-jet processes in the Standard Model. The data are used to set upper limits on the production cross-section for a benchmark Z'model and, separately, on generic Gaussian-shape contributions to the mass distributions, extending the current ATLAS constraints on dijet resonances to the mass range between 225 and 1100GeV.
History
Publication status
- Published
File Version
- Published version
Journal
Physics Letters BISSN
0370-2693Publisher
ElsevierExternal DOI
Volume
795Page range
56-75Department affiliated with
- Physics and Astronomy Publications
Full text available
- Yes
Peer reviewed?
- Yes
Legacy Posted Date
2019-09-18First Open Access (FOA) Date
2019-09-18First Compliant Deposit (FCD) Date
2019-09-03Usage metrics
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