Search for low-mass resonances decaying into two jets and produced in 
association with a photon using $pp$ collisions at $\sqrt{s} = 13$ TeV with the 
ATLAS detector

ATLAS Collaboration,

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Search for low-mass resonances decaying into two jets and produced in association with a photon using $pp$ collisions at $\sqrt{s} = 13$ TeV with the ATLAS detector

ATLAS Collaboration (2019). Search for low-mass resonances decaying into two jets and produced in association with a photon using $pp$ collisions at $\sqrt{s} = 13$ TeV with the ATLAS detector. Physics Letters B, 795, 56. Retrieved from https://publications.mppmu.mpg.de/?action=search&mpi=MPP-2019-26.

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Datensatz-Permalink: https://hdl.handle.net/21.11116/0000-0005-D803-4 Versions-Permalink: https://hdl.handle.net/21.11116/0000-0005-D804-3

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Urheber:
ATLAS Collaboration¹, Autor

Affiliations:
1Max Planck Institute for Physics, Max Planck Society and Cooperation Partners, ou_2253650

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Schlagwörter: ATLAS

Zusammenfassung: 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 $Z^\prime$ 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.