期刊
PHYSICS LETTERS B
卷 776, 期 -, 页码 355-378出版社
ELSEVIER
DOI: 10.1016/j.physletb.2017.11.043
关键词
CMS; Physics; Top quark
资金
- BMWFW
- FWF (Austria)
- FNRS
- FWO (Belgium)
- CNPq
- CAPES
- FAPERJ
- FAPESP (Brazil)
- MES (Bulgaria)
- CERN
- CAS
- MoST
- NSFC (China)
- COLCIENCIAS (Colombia)
- MSES
- CSF (Croatia)
- RPF (Cyprus)
- SENESCYT (Ecuador)
- 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)
- MSIP
- NRF (Republic of Korea)
- LAS (Lithuania)
- MOE
- UM (Malaysia)
- BUAP
- CINVESTAV
- CONACYT
- LNS
- SEP
- UASLP-FAI (Mexico)
- MBIE (New Zealand)
- PAEC (Pakistan)
- MSHE
- NSC (Poland)
- FCT (Portugal)
- JINR (Dubna)
- MON
- RosAtom
- RAS
- RFBR
- RAEP (Russia)
- MESTD (Serbia)
- SEIDI
- CPAN
- PCTI
- FEDER (Spain)
- Swiss Funding Agencies (Switzerland)
- MST (Taipei)
- ThEPCenter
- IPST
- STAR
- NSTDA (Thailand)
- TUBITAK
- TAEK (Turkey)
- NASU
- SFFR (Ukraine)
- STFC (United Kingdom)
- DOE
- NSF (USA)
- Marie-Curie program
- European Research Council and Horizon 2020 Grant (European Union) [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, cofinanced from European Union
- Regional Development Fund
- Mobility Plus program of the Ministry of Science and Higher Education
- National Science Center (Poland)
- National Priorities Research Program by Qatar National Research Fund
- Programa Clarin-COFUND del Principado de Asturias
- Thalis and Aristeia programs cofinanced by 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]
- [Harmonia 2014/14/M/ST2/00428]
- [Opus 2014/13/B/ST2/02543]
- [2014/15/B/ST2/03998]
- [2015/19/B/ST2/02861]
- [Sonata-bis 2012/07/E/ST2/01406]
- Science and Technology Facilities Council [GRIDPP, ST/N000242/1, CMS] Funding Source: researchfish
- STFC [ST/N000242/1] Funding Source: UKRI
- Direct For Mathematical & Physical Scien [1151640] Funding Source: National Science Foundation
- Division Of Physics [1506168, 1607202, 1606321, 1506130] Funding Source: National Science Foundation
The cross sections for the production of t (t) over bar b (b) over bar and t (t) over bar jj events and their ratio sigma(t (t) over bar b (b) over bar)/sigma(t (t) over bar jj) are measured using data corresponding to an integrated luminosity of 2.3 fb(-1) collected in pp collisions at root s = 13 TeV with the CMS detector at the LHC. Events with two leptons (e or mu) and at least four reconstructed jets, including at least two identified as b quark jets, in the final state are selected. In the full phase space, the measured ratio is 0.022 +/- 0.003 (stat) +/- 0.006 (syst), the cross section sigma(t (t) over bar b (b) over bar) bis 4.0 +/- 0.6 (stat)+/- 1.3 (syst) pb and sigma(t (t) over bar jj) is 184 +/- 6 (stat)+/- 33 (syst) pb. The measurements are compared with the standard model expectations obtained from a POWHEG simulation at next-to-leading-order interfaced with PYTHIA. (c) 2017 The Author. Published by Elsevier B.V.
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