Search for new phenomena in events with an energetic jet and missing transverse momentum in pp collisions at √s=13  TeV with the ATLAS detector

dc.contributor.authorAad, G.
dc.contributor.authorAbbott, B.
dc.contributor.authorAbbott, D.C.
dc.contributor.authorAbed Abud, A.
dc.contributor.authorAbeling, K.
dc.contributor.authorAbhayasinghe, D.K.
dc.contributor.authorAbidi, S.H.
dc.contributor.authorAbouZeid, O.S.
dc.contributor.authorAbraham, N.L.
dc.contributor.authorAbramowicz, H.
dc.contributor.authorAbreu, H.
dc.contributor.authorAbulaiti, Y.
dc.contributor.authorAcharya, B.S.
dc.contributor.authorAchkar, B.
dc.contributor.authorAdam, L.
dc.contributor.authorAdam Bourdarios, C.
dc.contributor.authorAdamczyk, L.
dc.contributor.authorAdamek, L.
dc.contributor.authorAdelman, J.
dc.contributor.authorAdersberger, M.
dc.contributor.authoret al.
dc.date.issued2021
dc.descriptionPublished 10 June 2021
dc.description.abstractResults of a search for new physics in final states with an energetic jet and large missing transverse momentum are reported. The search uses proton-proton collision data corresponding to an integrated luminosity of 139 fb−1 at a center-of-mass energy of 13 TeV collected in the period 2015–2018 with the ATLAS detector at the Large Hadron Collider. Compared to previous publications, in addition to an increase of almost a factor of four in the data size, the analysis implements a number of improvements in the signal selection and the background determination leading to enhanced sensitivity. Events are required to have at least one jet with transverse momentum above 150 GeV and no reconstructed leptons (e, μ or τ) or photons. Several signal regions are considered with increasing requirements on the missing transverse momentum starting at 200 GeV. Overall agreement is observed between the number of events in data and the Standard Model predictions. Model-independent 95% confidencelevel limits on visible cross sections for new processes are obtained in the range between 736 fb and 0.3 fb. Results are also translated into improved exclusion limits in models with pair-produced weakly interacting dark-matter candidates, large extra spatial dimensions, supersymmetric particles in several compressed scenarios, axionlike particles, and new scalar particles in dark-energyinspired models. In addition, the data are translated into bounds on the invisible branching ratio of the Higgs boson.
dc.description.statementofresponsibilityG. Aad ... D. Duvnjak ... P. Jackson ... A. X. Y. Kong ... J. L. Oliver ... H. Potti ... T. A. Ruggeri ... K. Sato ... A.S. Sharma ... M. J. White ... et al. (ATLAS Collaboration)
dc.identifier.citationPhysical Review D, 2021; 103(11):112006-1-112006-40
dc.identifier.doi10.1103/PhysRevD.103.112006
dc.identifier.issn2470-0010
dc.identifier.issn2470-0029
dc.identifier.orcidJackson, P. [0000-0002-0847-402X]
dc.identifier.orcidKong, A.X.Y. [0000-0001-8063-8765]
dc.identifier.orcidOliver, J.L. [0000-0002-0713-6627]
dc.identifier.orcidPotti, H. [0000-0002-0800-9902]
dc.identifier.orcidRuggeri, T.A. [0000-0001-9941-1966]
dc.identifier.orcidSato, K. [0000-0001-8988-4065]
dc.identifier.urihttps://hdl.handle.net/2440/134754
dc.language.isoen
dc.publisherAmerican Physical Society (APS)
dc.rights© 2021 CERN, for the ATLAS Collaboration. Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Funded by SCOAP3.
dc.source.urihttps://www.aps.org/
dc.titleSearch for new phenomena in events with an energetic jet and missing transverse momentum in pp collisions at √s=13  TeV with the ATLAS detector
dc.title.alternativeSearch for new phenomena in events with an energetic jet and missing transverse momentum in pp collisions at root s=13TeV with the ATLAS detector
dc.typeJournal article
pubs.publication-statusPublished

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