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http://dr.iiserpune.ac.in:8080/xmlui/handle/123456789/6438| Title: | Observation of tW production in the single-lepton channel in pp collisions at √s = 13 TeV |
| Authors: | CMS Collaboration Tumasyan, A. ALPANA, K. DUBE, SOURABH KANSAL, B. LAHA, A. PANDEY, S. RANE, A. RASTOGI, A. SHARMA, SEEMA et al. Dept. of Physics |
| Keywords: | Hadron-Hadron scattering (experiments) Top physics 2021-DEC-WEEK1 TOC-DEC-2021 2021 |
| Issue Date: | Nov-2021 |
| Publisher: | Springer Nature |
| Citation: | Journal of High Energy Physics, 2012(11), 111. |
| Abstract: | A measurement of the cross section of the associated production of a single top quark and a W boson in final states with a muon or electron and jets in proton-proton collisions at s√ = 13 TeV is presented. The data correspond to an integrated luminosity of 36 fb−1 collected with the CMS detector at the CERN LHC in 2016. A boosted decision tree is used to separate the tW signal from the dominant tt¯ background, whilst the subleading W+jets and multijet backgrounds are constrained using data-based estimates. This result is the first observation of the tW process in final states containing a muon or electron and jets, with a significance exceeding 5 standard deviations. The cross section is determined to be 89 ± 4 (stat) ± 12 (syst) pb, consistent with the standard model. |
| URI: | http://dr.iiserpune.ac.in:8080/xmlui/handle/123456789/6438 https://doi.org/10.1007/JHEP11(2021)111 |
| ISSN: | 1029-8479 |
| Appears in Collections: | JOURNAL ARTICLES |
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