Search for low-mass resonances decaying into two jets and produced in association with a photon using pp collisions at √s=13 TeV with the ATLAS detector
Research output: Contribution to journal › Article › peer-review
Colleges, School and Institutes
A 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 79.8 fb−1 of LHC proton–proton collisions collected by the ATLAS experiment at a centre-of-mass energy of 13 TeV 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 1100 GeV.
|Number of pages||20|
|Journal||Physical Review Letters|
|Early online date||30 May 2019|
|Publication status||Published - 10 Aug 2019|