Analysis of Events with B-Jets and a Pair of Leptons of the Same Charge in pp Collisions at √s̅ = 8 TeV with the ATLAS Detector

Simple item page
dc.contributor.VIAF250674117 (Izen, JM)en_US
dc.contributor.authorAad, G.en_US
dc.contributor.authorAbbott, B.en_US
dc.contributor.authorAbdallah, J.en_US
dc.contributor.authorAbdinov, O.en_US
dc.contributor.authorAben, R.en_US
dc.contributor.authorAbolins, M.en_US
dc.contributor.authorAbouZeid, O. S.en_US
dc.contributor.authorIzen, Joseph M.en_US
dc.contributor.authorLeyton, Michaelen_US
dc.contributor.authorMeirose, Bernharden_US
dc.contributor.authorNamasivayam, Harisankaren_US
dc.contributor.authorReeves, Kendallen_US
dc.contributor.authorATLAS Collaborationen_US
dc.contributor.utdAuthorIzen, Joseph M.en_US
dc.contributor.utdAuthorLeyton, Michaelen_US
dc.contributor.utdAuthorMeirose, Bernharden_US
dc.contributor.utdAuthorNamasivayam, Harisankaren_US
dc.contributor.utdAuthorReeves, Kendallen_US
dc.date.accessioned2017-11-10T23:18:15Z
dc.date.available2017-11-10T23:18:15Z
dc.date.created2015-10-22en_US
dc.date.issued2015-10-22en_US
dc.description.abstractAn analysis is presented of events containing jets including at least one b tagged jet, sizeable missing transverse momentum, and at least two leptons including a pair of the same electric charge, with the scalar sum of the jet and lepton transverse momenta being large. A data sample with an integrated luminosity of 20.3 fb(-1) of p p collisions at p root s = 8TeV recorded by the ATLAS detector at the Large Hadron Collider is used. Standard Model processes rarely produce these final states, but there are several models of physics beyond the Standard Model that predict an enhanced rate of production of such events; the ones considered here are production of vector-like quarks, enhanced fourtop- quark production, pair production of chiral b'-quarks, and production of two positively charged top quarks. Eleven signal regions are defined; subsets of these regions are combined when searching for each class of models. In the three signal regions primarily sensitive to positively charged top quark pair production, the data yield is consistent with the background expectation. There are more data events than expected from background in the set of eight signal regions defined for searching for vector-like quarks and chiral b'-quarks, but the significance of the discrepancy is less than two standard deviations. The discrepancy reaches 2.5 standard deviations in the set of five signal regions defined for searching for four-top-quark production. The results are used to set 95% CL limits on various models.en_US
dc.identifier.bibliographicCitationAad, G., B. Abbott, J. Abdallah, O. Abdinov, et al. 2015. "Analysis of events with b-jets and a pair of leptons of the same charge in pp collisions at √s̅ =8 TeV with the ATLAS detector." Journal of High Energy Physics 10(150), doi:10.1007/JHEP10(2015)150en_US
dc.identifier.issn1029-8479en_US
dc.identifier.issue10en_US
dc.identifier.urihttp://hdl.handle.net/10735.1/5586
dc.language.isoenen_US
dc.publisherSpringeren_US
dc.relation.urihttp://dx.doi.org/10.1007/JHEP10(2015)150
dc.rightsCC BY 4.0 (Attribution)en_US
dc.rights©2015 CERN, for the ATLAS Collaborationen_US
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/en_US
dc.sourceJournal of High Energy Physics
dc.subjectProton-proton interactionsen_US
dc.subjectLeptons (Nuclear physics)en_US
dc.subjectJets (Nuclear physics)en_US
dc.subjectHadrons--Scatteringen_US
dc.subjectStandard Modelen_US
dc.subjectElectroweak interactionsen_US
dc.subjectBosonsen_US
dc.subjectQuarksen_US
dc.subjectParticles (Nuclear physics)—Chiralityen_US
dc.subjectHiggs bosonsen_US
dc.subjectLarge Hadron Collider (France and Switzerland)en_US
dc.titleAnalysis of Events with B-Jets and a Pair of Leptons of the Same Charge in pp Collisions at √s̅ = 8 TeV with the ATLAS Detectoren_US
dc.type.genrearticleen_US

Files

Original bundle

Now showing 1 - 1 of 1
Thumbnail Image
Name:
NSM-2307-6719.58.pdf
Size:
1.21 MB
Format:
Adobe Portable Document Format
Description:
Article
Download

Collections

Izen, Joseph M.