Search for standard model production of four top quarks in the lepton + jets channel in pp collisions at √s = 8 TeV
dc.contributor.author | Khachatryan, V. | |
dc.contributor.author | Işıldak, Bora | |
dc.date.accessioned | 2016-06-30T12:33:34Z | |
dc.date.available | 2016-06-30T12:33:34Z | |
dc.date.issued | 2014-11 | |
dc.identifier.issn | 1029-8479 | |
dc.identifier.uri | http://hdl.handle.net/10679/4223 | |
dc.identifier.uri | http://link.springer.com/article/10.1007/JHEP11%282014%29154 | |
dc.description.abstract | A search is presented for standard model (SM) production of four top quarks (tt¯tt¯)(tt¯tt¯) in pp collisions in the lepton + jets channel. The data correspond to an integrated luminosity of 19.6 fb−1 recorded at a centre-of-mass energy of 8 TeV with the CMS detector at the CERN LHC. The expected cross section for SM tt¯tt¯tt¯tt¯ production is σSMtt¯tt¯≈1fbσtt¯tt¯SM≈1fb . A combination of kinematic reconstruction and multivariate techniques is used to distinguish between the small signal and large background. The data are consistent with expectations of the SM, and an upper limit of 32 fb is set at a 95% confidence level on the cross section for producing four top quarks in the SM, where a limit of 32 ± 17 fb is expected. | |
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 | Springer International Publishing | |
dc.relation | info:turkey/grantAgreement/TUBITAK | |
dc.relation.ispartof | Journal of High Energy Physics | |
dc.rights | openAccess | |
dc.title | Search for standard model production of four top quarks in the lepton + jets channel in pp collisions at √s = 8 TeV | en_US |
dc.type | Article | en_US |
dc.description.version | publisher version | |
dc.peerreviewed | yes | |
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.issue | 11 | |
dc.identifier.wos | WOS:000347909500004 | |
dc.identifier.doi | 10.1007/JHEP11(2014)154 | |
dc.subject.keywords | Hadron-hadron scattering | |
dc.subject.keywords | Top physics | |
dc.identifier.scopus | SCOPUS:2-s2.0-84915753417 | |
dc.contributor.authorMale | 1 |
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