Abraham, N L, Allbrooke, B M M, Asquith, L, Cerri, A, Jones, S D, De Santo, A, Salvatore, F, Shaw, K, Stevenson, T J, Suruliz, K, Sutton, M R, Tresoldi, F, Vivarelli, I, Trovato, F, Winkels, E, The ATLAS Collaboration, and others, (2019) Search for low-mass resonances decaying into two jets and produced in association with a photon using pp collisions at √s=13TeV with the ATLAS detector. Physics Letters B, 795. pp. 56-75. ISSN 0370-2693
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Abstract
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 79.8fb−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.
Item Type: | Article |
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Schools and Departments: | School of Mathematical and Physical Sciences > Physics and Astronomy |
Subjects: | Q Science > QC Physics |
Depositing User: | Amelia Redman |
Date Deposited: | 18 Sep 2019 14:18 |
Last Modified: | 08 Oct 2019 10:15 |
URI: | http://sro.sussex.ac.uk/id/eprint/85914 |
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