Journal
PHYSICS LETTERS B
Volume 781, Issue -, Pages 574-600Publisher
ELSEVIER
DOI: 10.1016/j.physletb.2018.04.036
Keywords
CMS; Physics; Vector-like quarks
Funding
- BMWFW (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]
- STFC [ST/L005603/1, 1707996, ST/M004775/1, ST/K003542/1, ST/N001273/1, ST/N000242/1, ST/J004871/1, ST/J005479/1, ST/I003622/1, ST/F007434/1, 1708249, ST/I505580/1] Funding Source: UKRI
- Science and Technology Facilities Council [ST/N001273/1, ST/J005479/1, ST/J004871/1, ST/K003542/1 GRID PP, ST/I003622/1, ST/K003542/1, ST/L005603/1, ST/F007434/1, ST/I505580/1, ST/M004775/1] Funding Source: researchfish
- Direct For Mathematical & Physical Scien [1606321, 1508869] Funding Source: National Science Foundation
- Division Of Physics [1151640, 1506168] Funding Source: National Science Foundation
Ask authors/readers for more resources
A 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.
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