Measurement of associated production of vector bosons and top quark-antiquark pairs in pp collisions at root s=7 TeV
dc.contributor.author | Chatrchyan, S. | |
dc.contributor.author | Işıldak, Bora | |
dc.date.accessioned | 2014-11-19T06:44:34Z | |
dc.date.available | 2014-11-19T06:44:34Z | |
dc.date.issued | 2013-04-26 | |
dc.identifier.issn | 1079-7114 | |
dc.identifier.uri | http://journals.aps.org/prl/abstract/10.1103/PhysRevLett.110.172002 | |
dc.identifier.uri | http://hdl.handle.net/10679/624 | |
dc.description.abstract | The first measurement of vector-boson production associated with a top quark-antiquark pair in proton-proton collisions at root s = 7 TeV is presented. The results are based on a data set corresponding to an integrated luminosity of 5.0 fb(-1), recorded by the CMS detector at the LHC in 2011. The measurement is performed in two independent channels through a trilepton analysis of t (t) over barZ events and a same-sign dilepton analysis of t (t) over barV (V = W or Z) events. In the trilepton channel a direct measurement of the t (t) over barZ cross section sigma(t (t) over barZ) = 0.28(-0.11)(+0.14) (stat)(-0.03)(+0.06) (syst) pb is obtained. In the dilepton channel a measurement of the t (t) over barV cross section yields sigma(t (t) over barV) = 0.43(-0.15)(+0.17) (stat)(-0.07)(+0.09) (syst) pb. These measurements have a significance, respectively, of 3.3 and 3.0 standard deviations from the background hypotheses and are compatible, within uncertainties, with the corresponding next-to-leading order predictions of 0.137(-0.016)(+0.012) and 0.306(-0.053)(+0.031) pb. | en_US |
dc.description.sponsorship | BMWF ; FWF ; FNRS ; FWO ; CNPq ; CAPES ; FAPERJ ; FAPESP ; MES ; CERN ; CAS ; MoST ; NSFC ; COLCIENCIAS ; MSES ; RPF ; MoER ; ERDF ; Academy of Finland ; MEC ; HIP ; CEA ; CNRS ; BMBF ; DFG ; HGF ; GSRT ; OTKA ; NKTH ; DAE ; DST ; IPM ; SFI ; INFN ; NRF ; WCU ; LAS ; CINVESTAV ; CONACYT ; UASLP-FAI ; MSI ; PAEC ; MSHE ; NSC ; FCT ; JINR ; MON ; RosAtom ; RAS ; RFBR ; MESTD ; SEIDI ; CPAN ; Swiss Funding Agencies ; NSC ; ThEPCenter ; IPST ; STAR ; NSTDA ; TUBITAK ; TAEK ; NASU ; STFC ; DOE ; NSF. | |
dc.language.iso | eng | en_US |
dc.publisher | American Physical Society | en_US |
dc.relation | info:turkey/grantAgreement/TUBITAK | en_US |
dc.relation.ispartof | Physical Review Letters | |
dc.rights | restrictedAccess | |
dc.title | Measurement of associated production of vector bosons and top quark-antiquark pairs in pp collisions at root s=7 TeV | en_US |
dc.type | Article | en_US |
dc.peerreviewed | yes | en_US |
dc.publicationstatus | published | en_US |
dc.contributor.department | Özyeğin University | |
dc.contributor.authorID | (ORCID 0000-0002-0283-5234 & YÖK ID 124605) Işıldak, Bora | |
dc.contributor.ozuauthor | Işıldak, Bora | |
dc.creator | The CMS Collaboration | |
dc.identifier.volume | 110 | |
dc.identifier.issue | 7 | |
dc.identifier.wos | WOS:000318188100004 | |
dc.identifier.doi | 10.1103/PhysRevLett.110.172002 | |
dc.subject.keywords | Detector | en_US |
dc.subject.keywords | LHC | en_US |
dc.contributor.authorMale | 1 |
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