Search for new phenomena using the invariant mass distribution of same-flavour opposite-sign dilepton pairs in events with missing transverse momentum in √s=13 TeV pp collisions with the ATLAS detector

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dc.contributor.authorÇakır, Orhan
dc.contributor.authorDuran Yıldız, Hatice
dc.contributor.departmentFen Fakültesitr_TR
dc.date.accessioned2020-03-14T21:14:19Z
dc.date.available2020-03-14T21:14:19Z
dc.date.issued2018
dc.description.abstractA search for new phenomena in final states containing an e+e- or μ+μ- pair, jets, and large missing transverse momentum is presented. This analysis makes use of proton–proton collision data with an integrated luminosity of 36.1fb-1, collected during 2015 and 2016 at a centre-of-mass energy s=13TeV with the ATLAS detector at the Large Hadron Collider. The search targets the pair production of supersymmetric coloured particles (squarks or gluinos) and their decays into final states containing an e+e- or μ+μ- pair and the lightest neutralino (χ~10) via one of two next-to-lightest neutralino (χ~20) decay mechanisms: χ~20→Zχ~10, where the Z boson decays leptonically leading to a peak in the dilepton invariant mass distribution around the Z boson mass; and χ~20→ℓ+ℓ-χ~10 with no intermediate ℓ+ℓ- resonance, yielding a kinematic endpoint in the dilepton invariant mass spectrum. The data are found to be consistent with the Standard Model expectation. Results are interpreted using simplified models, and exclude gluinos and squarks with masses as large as 1.85 and 1.3 Te at 95% confidence level, respectively. © 2018, CERN for the benefit of the ATLAS collaboration.tr_TR
dc.description.indexPubmed
dc.identifier.endpage38tr_TR
dc.identifier.issn/e-issn1434-6052
dc.identifier.issn/e-issn1434-6044
dc.identifier.issue8tr_TR
dc.identifier.other625tr_TR
dc.identifier.startpage1tr_TR
dc.identifier.urihttps://doi.org/10.1140/epjc/s10052-018-6081-9tr_TR
dc.identifier.urihttp://hdl.handle.net/20.500.12575/70531
dc.identifier.volume78tr_TR
dc.language.isoentr_TR
dc.relation.isversionof10.1140/epjc/s10052-018-6081-9tr_TR
dc.relation.journalEuropean Physical Journal Ctr_TR
dc.relation.publicationcategoryMakale - Ulusal Hakemli Dergi - Kurum Öğretim Elemanıtr_TR
dc.titleSearch for new phenomena using the invariant mass distribution of same-flavour opposite-sign dilepton pairs in events with missing transverse momentum in √s=13 TeV pp collisions with the ATLAS detectortr_TR
dc.typeArticletr_TR

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