Observation of the Associated Production of a Single Top Quark - and a W Boson in pp Collisions at ?s=8 TeV

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dc.authoridRodriguez, Jorge Luis/0000-0001-6680-7761
dc.authoridChoi, Suyong/0000-0001-6225-9876
dc.authoridDuarte-Campderros, Jordi/0000-0003-0687-5214
dc.authoridLigabue, Franco/0000-0002-1549-7107
dc.authoridClaes, Daniel/0000-0003-4198-8919
dc.authoridSilvestris, Lucia/0000-0002-8985-4891
dc.authoridGrunewald, Martin/0000-0002-5754-0388
dc.contributor.authorChatrchyan, S.
dc.contributor.authorKhachatryan, V.
dc.contributor.authorSirunyan, A. M.
dc.contributor.authorTumasyan, A.
dc.contributor.authorAdam, W.
dc.contributor.authorBergauer, T.
dc.contributor.authorThe CMS Collaboration
dc.date.accessioned2025-03-07T20:12:58Z
dc.date.available2025-03-07T20:12:58Z
dc.date.issued2014
dc.departmentÇağ Üniversitesi
dc.description.abstractThe first observation of the associated production of a single top quark and a W boson is presented. The analysis is based on a data set corresponding to an integrated luminosity of 12.2 fb(-1) of proton-proton collisions at root s = 8 TeV recorded by the CMS experiment at the LHC. Events with two leptons and a jet originating from a b quark are selected. A multivariate analysis based on kinematic and topological properties is used to separate the signal from the dominant (tt) over bar background. An excess consistent with the signal hypothesis is observed, with a significance which corresponds to 6.1 standard deviations above a background-only hypothesis. The measured production cross section is 23.4 +/- 5.4 pb, in agreement with the standard model prediction.
dc.description.sponsorshipBMWF (Austria); FWF (Austria); FNRS (Belgium); FWO (Belgium); CNPq (Brazil); CAPES (Brazil); FAPERJ (Brazil); FAPESP (Brazil); MES (Bulgaria); CERN (China); CAS (China); MoST (China); NSFC (China); COLCIENCIAS (Colombia); MSES (Croatia); CSF (Croatia); RPF (Cyprus); MoER [SF0690030s09]; ERDF (Estonia); Academy of Finland (Finland); MEC (Finland); HIP (Finland); CEA (France); CNRS/IN2P3 (France); BMBF (Germany); DFG (Germany); HGF (Germany); GSRT (Greece); OTKA (Hungary); NIH (Hungary); DAE (India); DST (India); IPM (Iran); SFI (Ireland); INFN (Italy); NRF (Republic of Korea); WCU (Republic of Korea); LAS (Lithuania); CINVESTAV (Mexico); CONACYT (Mexico); SEP (Mexico); UASLP-FAI (Mexico); MBIE (New Zealand); PAEC (Pakistan); MSHE (Poland); NSC (Poland); FCT (Portugal); JINR (Dubna); MON (Russia); RosAtom (Russia); RAS (Russia); RFBR (Russia); MESTD (Serbia); SEIDI (Spain); CPAN (Spain); Swiss Funding Agencies (Switzerland); NSC (Taipei); ThEPCenter (Thailand); IPST (Thailand); STAR (Thailand); NSTDA (Thailand); TUBITAK (Turkey); TAEK (Turkey); NASU (Ukraine); STFC (United Kingdom); DOE (USA); NSF (USA); STFC [ST/J004901/1, ST/F007094/1, ST/J004871/1, ST/J005665/1, ST/I005912/1, ST/I000410/1, PP/E002803/1, ST/L005603/1, ST/H000925/1, ST/H000925/2, ST/F006748/1, ST/K001639/1, ST/M002020/1, ST/L00609X/1, ST/G502347/1, ST/H00081X/2, ST/K003542/1, ST/I000305/1, ST/I003622/1, ST/I002200/1, ST/J005479/1, ST/I505572/1, ST/K003844/1, ST/K001604/1, ST/K001531/1] Funding Source: UKRI; Direct For Mathematical & Physical Scien; Division Of Physics [1306040, 0970004, 1120138, 1306951] Funding Source: National Science Foundation; Division Of Physics; Direct For Mathematical & Physical Scien [1205960, 1306953, 0906479, 1314131, 1151640] Funding Source: National Science Foundation
dc.description.sponsorshipWe congratulate our colleagues in the CERN accelerator departments for the excellent performance of the LHC and thank the technical and administrative staffs at CERN and at other CMS institutes for their contributions to the success of the CMS effort. In addition, we gratefully acknowledge the computing centers and personnel of the Worldwide LHC Computing Grid for delivering so effectively the computing infrastructure essential to our analyses. Finally, we acknowledge the enduring support for the construction and operation of the LHC and the CMS detector provided by the following funding agencies: BMWF and FWF (Austria); FNRS and FWO (Belgium); CNPq, CAPES, FAPERJ, and FAPESP (Brazil); MES (Bulgaria); CERN; CAS, MoST, and NSFC (China); COLCIENCIAS (Colombia); MSES and CSF (Croatia); RPF (Cyprus); MoER, Contract No. SF0690030s09, and ERDF (Estonia); Academy of Finland, MEC, and HIP (Finland); CEA and CNRS/IN2P3 (France); BMBF, DFG, and HGF (Germany); GSRT (Greece); OTKA and NIH (Hungary); DAE and DST (India); IPM (Iran); SFI (Ireland); INFN (Italy); NRF and WCU (Republic of Korea); LAS (Lithuania); CINVESTAV, CONACYT, SEP, and UASLP-FAI (Mexico); MBIE (New Zealand); PAEC (Pakistan); MSHE and NSC (Poland); FCT (Portugal); JINR (Dubna); MON, RosAtom, RAS, and RFBR (Russia); MESTD (Serbia); SEIDI and CPAN (Spain); Swiss Funding Agencies (Switzerland); NSC (Taipei); ThEPCenter, IPST, STAR, and NSTDA (Thailand); TUBITAK and TAEK (Turkey); NASU (Ukraine); STFC (United Kingdom); DOE and NSF (USA).
dc.identifier.doi10.1103/PhysRevLett.112.231802
dc.identifier.issn0031-9007
dc.identifier.issn1079-7114
dc.identifier.issue23
dc.identifier.urihttps://doi.org/10.1103/PhysRevLett.112.231802
dc.identifier.urihttps://hdl.handle.net/20.500.12507/2838
dc.identifier.volume112
dc.identifier.wosWOS:000336981200003
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.language.isoen
dc.publisherAmer Physical Soc
dc.relation.ispartofPhysical Review Letters
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.snmzKA_WoS_20241226
dc.titleObservation of the Associated Production of a Single Top Quark - and a W Boson in pp Collisions at ?s=8 TeV
dc.typeArticle

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