Search for single production of a vector- like T quark decaying to a Z boson and a top quark in proton-proton collisions at √s=13 TeV

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dc.authoridBunkowski, Karol/0000-0001-6371-9336
dc.authoridRappoccio, Salvatore/0000-0002-5449-2560
dc.authoridLeonardo, Nuno/0000-0002-9746-4594
dc.authoridPaulini, Manfred/0000-0002-6714-5787
dc.authoridSeidel, Markus/0000-0003-3550-6151
dc.authoridDissertori, Guenther/0000-0002-4549-2569
dc.authoridKrammer, Manfred/0000-0003-2257-7751
dc.contributor.authorSirunyan, A. M.
dc.contributor.authorTumasyan, A.
dc.contributor.authorAdam, W.
dc.contributor.authorAmbrogi, F.
dc.contributor.authorAsilar, E.
dc.contributor.authorBergauer, T.
dc.contributor.authorBrandstetter, J.
dc.date.accessioned2025-03-23T19:38:52Z
dc.date.available2025-03-23T19:38:52Z
dc.date.issued2018
dc.departmentSinop Üniversitesi
dc.description.abstractA search is presented for single production of a vector-like quark (T) decaying to a Z boson and a top quark, with the Z boson decaying leptonically and the top quark decaying hadronically. The search uses data collected by the CMS experiment in proton-proton collisions at a center-of-mass energy of 13 TeV in 2016, corresponding to an integrated luminosity of 35.9 fb(-1). The presence of forward jets is a particular characteristic of single production of vector-like quarks that is used in the analysis. For the first time, different T quark width hypotheses are studied, from negligibly small to 30% of the new particle mass. At the 95% confidence level, the product of cross section and branching fraction is excluded above values in the range 0.26-0.04 pb for T quark masses in the range 0.7-1.7 TeV, assuming a negligible width. A similar sensitivity is observed for widths of up to 30% of the T quark mass. The production of a heavy Z' boson decaying to Tt, with T -> tZ, is also searched for, and limits on the product of cross section and branching fractions for this process are set between 0.13 and 0.06pbfor Z' boson masses in the range from 1.5 to 2.5 TeV. (C) 2018 The Author(s). Published by Elsevier B.V.
dc.description.sponsorshipBMWFW (Austria); FWF (Austria); FNRS (Belgium); FWO (Belgium); CNPq, (Brazil); CAPES, (Brazil); FAPERJ, (Brazil); FAPESP (Brazil); MES (Bulgaria); CERN; CAS, (China); MOST, (China); NSFC (China); COLCIENCIAS (Colombia); MSES (Croatia); CSF (Croatia); RPF (Cyprus); SENESCYT (Ecuador); MoER, (Estonia); ERC IUT, (Estonia); ERDF (Estonia); Academy of 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); MSIP (Republic of Korea); NRF (Republic of Korea); LAS (Lithuania); MOE (Malaysia); UM (Malaysia); BUAP, (Mexico); CINVESTAV, (Mexico); CONACYT, (Mexico); LNS, (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); RAEP (Russia); MESTD (Serbia); SEIDI (Spain); CPAN (Spain); PCTI (Spain); FEDER (Spain); Swiss Funding Agencies (Switzerland); MST (Taipei); ThEP-Center (Thailand); IPST (Thailand); STAR (Thailand); NSTDA (Thailand); TUBITAK (Turkey); TAEK (Turkey); NASU (Ukraine); SFFR (Ukraine); STFC (United Kingdom); DOE (USA); NSF (USA); Marie-Curie program and the European Research Council and Horizon 2020 Grant [675440]; 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 program of the Foundation for Polish Science; European Union, Regional Development Fund; Mobility Plus program of the Ministry of Science and Higher Education; National Science Center (Poland) [2014/14/M/ST2/00428, 2014/13/B/ST2/02543, 2014/15/B/ST2/03998, 2015/19/B/ST2/02861, 2012/07/E/ST2/01406]; National Priorities Research Program by Qatar National Research Fund; Programa Clarin-COFUND del Principado de Asturias; Thalis and Aristeia programs; EU-ESF; Greek NSRF; Rachadapisek Sompot Fund for Postdoctoral Fellowship, Chulalongkorn University; Chulalongkorn Academic into Its 2nd Century Project Advancement Project (Thailand); Welch Foundation [C-1845]; Direct For Mathematical & Physical Scien; Division Of Physics [1151640, 1506168] Funding Source: National Science Foundation; Division Of Physics; Direct For Mathematical & Physical Scien [1508869, 1606321] Funding Source: National Science Foundation; STFC [ST/I003622/1, ST/K003542/1, ST/I505580/1, ST/L005603/1, ST/N001273/1, 1707996, ST/M004775/1, ST/J004871/1, 1708249, ST/F007434/1, ST/J005479/1, ST/N000242/1] Funding Source: UKRI
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: 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); SENESCYT (Ecuador); 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); MSIP and NRF (Republic of Korea); LAS (Lithuania); MOE and UM (Malaysia); BUAP, CINVESTAV, CONACYT, LNS, SEP, and UASLP-FAI (Mexico); MBIE (New Zealand); PAEC (Pakistan); MSHE and NSC (Poland); FCT (Portugal); JINR (Dubna); MON, RosAtom, RAS, RFBR and RAEP (Russia); MESTD (Serbia); SEIDI, CPAN, PCTI and FEDER (Spain); Swiss Funding Agencies (Switzerland); MST (Taipei); ThEP-Center, IPST, STAR, and NSTDA (Thailand); TUBITAK and TAEK (Turkey); NASU and SFFR (Ukraine); STFC (United Kingdom); DOE and NSF (USA).r Individuals have received support from the Marie-Curie program and the European Research Council and Horizon 2020 Grant, contract No. 675440 (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 program of the Foundation for Polish Science, cofinanced from European Union, Regional Development Fund, the Mobility Plus program of the Ministry of Science and Higher Education, the National Science Center (Poland), contracts Harmonia 2014/14/M/ST2/00428, Opus 2014/13/B/ST2/02543, 2014/15/B/ST2/03998, and 2015/19/B/ST2/02861, Sonata-bis 2012/07/E/ST2/01406; the National Priorities Research Program by Qatar National Research Fund; the Programa Clarin-COFUND del Principado de Asturias; the Thalis and Aristeia programs cofinanced by EU-ESF and the Greek NSRF; the Rachadapisek Sompot Fund for Postdoctoral Fellowship, Chulalongkorn University and the Chulalongkorn Academic into Its 2nd Century Project Advancement Project (Thailand); and the Welch Foundation, contract C-1845.
dc.identifier.doi10.1016/j.physletb.2018.04.036
dc.identifier.endpage600
dc.identifier.issn0370-2693
dc.identifier.issn1873-2445
dc.identifier.scopus2-s2.0-85046377478
dc.identifier.scopusqualityQ1
dc.identifier.startpage574
dc.identifier.urihttps://doi.org/10.1016/j.physletb.2018.04.036
dc.identifier.urihttps://hdl.handle.net/11486/6235
dc.identifier.volume781
dc.identifier.wosWOS:000435653100073
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherElsevier
dc.relation.ispartofPhysics Letters B
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.snmzKA_WOS_20250323
dc.subjectCMS
dc.subjectPhysics
dc.subjectVector-like quarks
dc.titleSearch for single production of a vector- like T quark decaying to a Z boson and a top quark in proton-proton collisions at √s=13 TeV
dc.typeArticle

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