Measurement of the single top quark and antiquark production cross sections in the t channel and their ratio in proton-proton collisions at
Measurements of the cross sections for the production of single top quarks and antiquarks in the t channel, and their ratio, are presented for proton-proton collisions at a center-of-mass energy of 13 TeV. The data set used was recorded in 2016 by the CMS detector at the LHC and corresponds to an integrated luminosity of 35.9 fb-1. Events with one muon or electron are selected, and different categories of jet and b jet multiplicity and multivariate discriminators are applied to separate the signal from the background. The cross sections for the t-channel production of single top quarks and antiquarks are measured to be 130±1(stat)±19(syst)pb and 77±1(stat)±12(syst)pb, respectively, and their ratio is 1.68±0.02(stat)±0.05(syst). The results are in agreement with the predictions from the standard model.
- Research Organization:
- Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States); Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States); Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), High Energy Physics (HEP); National Science Foundation (NSF); The Welch Foundation; Weston Havens Foundation (USA); European Research Council (ERC); the Programa Estatal de Fomento de la Investigación Científica y Técnica de Excelencia María de Maeztu
- Contributing Organization:
- The CMS Collaboration
- Grant/Contract Number:
- AC02-07CH11359; C-1845; AC02-05CH11231; 675440; MDM-2015-0509
- OSTI ID:
- 1572109
- Alternate ID(s):
- OSTI ID: 1493044; OSTI ID: 1582367
- Report Number(s):
- FERMILAB-PUB-19-024-CMS; arXiv:1812.10514; CMS-TOP-17-011; CERN-EP-2018-321; S0370269319307646; 135042; PII: S0370269319307646
- Journal Information:
- Physics Letters. B, Journal Name: Physics Letters. B Vol. 800 Journal Issue: C; ISSN 0370-2693
- Publisher:
- ElsevierCopyright Statement
- Country of Publication:
- Netherlands
- Language:
- English
Web of Science
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