Measurement of the W boson helicity in events with a single reconstructed top quark in p p collisions at ?s=8 TeV

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dc.authoridLuo, Wuming/0000-0003-0137-1797
dc.authoridMalvezzi, Sandra/0000-0002-0218-4910
dc.authoridGeurts, Frank/0000-0003-2856-9090
dc.authoridKlyukhin, Vyacheslav/0000-0002-8577-6531
dc.authoridCimmino, Anna/0000-0001-7510-4996
dc.authoridRizzi, Andrea/0000-0002-4543-2718
dc.authoridHeath, Helen/0000-0001-6576-9740
dc.contributor.authorKhachatryan, V.
dc.contributor.authorSirunyan, A. M.
dc.contributor.authorTumasyan, A.
dc.contributor.authorAdam, W.
dc.contributor.authorBergauer, T.
dc.contributor.authorDragicevic, M.
dc.contributor.authorThe CMS Collaboration
dc.date.accessioned2025-03-07T20:18:00Z
dc.date.available2025-03-07T20:18:00Z
dc.date.issued2015
dc.departmentÇağ Üniversitesi
dc.description.abstractA measurement of the W boson helicity is presented, where the W boson originates from the decay of a top quark produced in pp collisions. The event selection, optimized for reconstructing a single top quark in the final state, requires exactly one isolated lepton (muon or electron) and exactly two jets, one of which is likely to originate from the hadronization of a bottom quark. The analysis is performed using data recorded at a center-of-mass energy of 8 TeV with the CMS detector at the CERN LHC in 2012. The data sample corresponds to an integrated luminosity of 19.7 fb(-1). The measured helicity fractions are F-L = 0.298 +/- 0.028 (stat) +/- 0.032(syst), F-0 = 0.720 +/- 0.039 (stat) +/- 0.037(syst), and F-R = -0.018 +/- 0.019 (stat) +/- 0.011(syst). These results are used to set limits on the real part of the tWb anomalous couplings, g(L) and g(R).
dc.description.sponsorshipBMWFW and FWF (Austria); FNRS and FWO (Belgium); CNPq; CAPES; FAPERJ; FAPESP (Brazil); MES (Bulgaria); CERN; CAS; MoST; NSFC (China); COLCIENCIAS (Colombia); MSES; CSF (Croatia); RPF (Cyprus); MoER; ERC IUT; ERDF (Estonia); Academy of Finland; MEC; HIP (Finland); CEA; CNRS/IN2P3 (France); BMBF; DFG; HGF (Germany); GSRT (Greece); OTKA; NIH (Hungary); DAE; DST (India); IPM (Iran); SFI (Ireland); INFN (Italy); NRF; WCU (Republic of Korea); LAS (Lithuania); MOE; UM (Malaysia); CINVESTAV; CONACYT; SEP; UASLP-FAI (Mexico); MBIE (New Zealand); PAEC (Pakistan); MSHE; NSC (Poland); FCT (Portugal); JINR (Dubna); MON; RosAtom; RAS; RFBR (Russia); MESTD (Serbia); SEIDI; CPAN (Spain); Swiss Funding Agencies (Switzerland); MST (Taipei); ThEPCenter; IPST; STAR; NSTDA (Thailand); TUBITAK; TAEK (Turkey); NASU; SFFR (Ukraine); STFC (United Kingdom); DOE; NSF (U. S. A.); Marie-Curie programme; European Research Council; EPLANET (European Union); Leventis Foundation; A. P. Sloan Foundation; Alexander von Humboldt Foundation; Belgian Federal Science Policy Office; Fonds pour la Formation a la Recherche dans l'Industrie et dans l'Agriculture (FRIA-Belgium); Agentschap voor Innovatie door Wetenschap en Technologie (IWT-Belgium); Ministry of Education, Youth and Sports (MEYS) of the Czech Republic; Council of Science and Industrial Research, India; HOMING PLUS programme of Foundation for Polish Science; European Union; Regional Development Fund; Compagnia di San Paolo (Torino); Consorzio per la Fisica (Trieste); MIUR project (Italy) [20108T4XTM]; Thalis and Aristeia programmes - EU-ESF; Greek NSRF; National Priorities Research Program by Qatar National Research Fund; STFC [ST/I505580/1, ST/I005912/1, ST/J50094X/1, ST/L005603/1, ST/K001639/1, ST/L00609X/1, ST/H00081X/2, ST/J005665/1, ST/M004775/1, ST/J004901/1, ST/K003542/1, ST/M005356/1, ST/K003844/1, ST/K001604/1] Funding Source: UKRI; Direct For Mathematical & Physical Scien; Division Of Physics [1151640, 1205960, 1314131] Funding Source: National Science Foundation; Division Of Physics; Direct For Mathematical & Physical Scien [1306040, 1211067, 1306951, 1120138] 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 centres 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: BMWFW 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, ERC IUT 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); MOE and UM (Malaysia); 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); MST (Taipei); ThEPCenter, IPST, STAR and NSTDA (Thailand); TUBITAK and TAEK (Turkey); NASU and SFFR (Ukraine); STFC (United Kingdom); DOE and NSF (U. S. A.).r Individuals have received support from the Marie-Curie programme and the European Research Council and EPLANET (European Union); the Leventis Foundation; the A. P. Sloan Foundation; the Alexander von Humboldt Foundation; the Belgian Federal Science Policy Office; the Fonds pour la Formation a la Recherche dans l'Industrie et dans l'Agriculture (FRIA-Belgium); the Agentschap voor Innovatie door Wetenschap en Technologie (IWT-Belgium); the Ministry of Education, Youth and Sports (MEYS) of the Czech Republic; the Council of Science and Industrial Research, India; the HOMING PLUS programme of Foundation for Polish Science, cofinanced from European Union, Regional Development Fund; the Compagnia di San Paolo (Torino); the Consorzio per la Fisica (Trieste); MIUR project 20108T4XTM (Italy); the Thalis and Aristeia programmes cofinanced by EU-ESF and the Greek NSRF; and the National Priorities Research Program by Qatar National Research Fund.
dc.identifier.doi10.1007/JHEP01(2015)053
dc.identifier.issn1029-8479
dc.identifier.issue1
dc.identifier.scopus2-s2.0-84938362734
dc.identifier.scopusqualityQ1
dc.identifier.urihttps://doi.org/10.1007/JHEP01(2015)053
dc.identifier.urihttps://hdl.handle.net/20.500.12507/3133
dc.identifier.wosWOS:000347885000004
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherSpringer
dc.relation.ispartofJournal of High Energy Physics
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.snmzKA_WoS_20241226
dc.subjectElectroweak interaction
dc.subjectHadron-Hadron Scattering
dc.titleMeasurement of the W boson helicity in events with a single reconstructed top quark in p p collisions at ?s=8 TeV
dc.typeArticle

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