dc.contributor.author | Yıldız (Duran), Hatice | |
dc.contributor.author | Çiftçi, Abbas Kenan | |
dc.contributor.author | Çakır, Orhan | |
dc.date.accessioned | 2020-03-07T20:51:11Z | |
dc.date.available | 2020-03-07T20:51:11Z | |
dc.date.issued | 2016 | |
dc.identifier.uri | https://doi.org/10.1016/j.physletb.2016.08.019 | tr_TR |
dc.identifier.uri | http://hdl.handle.net/20.500.12575/70264 | |
dc.description.abstract | This paper describes a measurement of the inclusive top quark pair production cross-section (σtt¯) with a data sample of 3.2fb−1 of proton–proton collisions at a centre-of-mass energy of s=13TeV, collected in 2015 by the ATLAS detector at the LHC. This measurement uses events with an opposite-charge electron–muon pair in the final state. Jets containing b-quarks are tagged using an algorithm based on track impact parameters and reconstructed secondary vertices. The numbers of events with exactly one and exactly two b-tagged jets are counted and used to determine simultaneously σtt¯ and the efficiency to reconstruct and b-tag a jet from a top quark decay, thereby minimising the associated systematic uncertainties. The cross-section is measured to be: σtt¯=818±8(stat)±27(syst)±19(lumi)±12(beam) pb, where the four uncertainties arise from data statistics, experimental and theoretical systematic effects, the integrated luminosity and the LHC beam energy, giving a total relative uncertainty of 4.4%. The result is consistent with theoretical QCD calculations at next-to-next-to-leading order. A fiducial measurement corresponding to the experimental acceptance of the leptons is also presented. © 2016 The Author(s) | tr_TR |
dc.language.iso | en | tr_TR |
dc.relation.isversionof | 10.1016/j.physletb.2016.08.019 | tr_TR |
dc.title | Measurement of the tt¯ production cross-section using eμ events with b-tagged jets in pp collisions at √s = 13 TeV with the ATLAS detector | tr_TR |
dc.type | Article | tr_TR |
dc.relation.journal | Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics | tr_TR |
dc.contributor.department | Fen Fakültesi | tr_TR |
dc.identifier.volume | 761 | tr_TR |
dc.identifier.startpage | 136 | tr_TR |
dc.identifier.endpage | 157 | tr_TR |
dc.relation.publicationcategory | Makale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı | tr_TR |
dc.identifier.issn/e-issn | 0370-2693 | |
dc.description.index | Wos | |
dc.description.index | Scopus | |