Aad, G.Abbott, B.Beddall, Andrew JohnÇetin, Serkant AliÖztürk, SertaçŞimşek, SinemUysal, Zekeriya2025-04-182025-04-182024Aad, G., Aakvaag, E., Abbott, B. K., Abeling, K., Abicht, N. J., Abidi, H., ... & Baines, L. (2024). Search for low-mass resonances decaying into two jets and produced in association with a photon or a jet at $\sqrt {s}= 13$ TeV with the ATLAS detector.24700010http://dx.doi.org/10.1103/PhysRevD.110.032002https://hdl.handle.net/20.500.12713/7200A search is performed for localized excesses in the low-mass dijet invariant mass distribution, targeting a hypothetical new particle decaying into two jets and produced in association with either a high transverse momentum photon or a jet. The search uses the full Run 2 data sample from LHC proton-proton collisions collected by the ATLAS experiment at a center-of-mass energy of 13 TeV during 2015-2018. Two variants of the search are presented for each type of initial-state radiation: one that makes no jet flavor requirements and one that requires both of the jets to have been identified as containing Formula Presented-hadrons. No excess is observed relative to the Standard Model prediction, and the data are used to set upper limits on the production cross section for a benchmark Formula Presented model and, separately, for generic, beyond the Standard Model scenarios which might produce a Gaussian-shaped contribution to dijet invariant mass distributions. The results extend the current constraints on dijet resonances to the mass range between 200 and 650 GeV.eninfo:eu-repo/semantics/openAccessArticle31302-s2.0-8520129043210.1103/PhysRevD.110.032002Q1