Observation of tW production in the single-lepton channel in pp collisions at √s = 13 TeV; Journal of High Energy Physics; Vol. 2021, iss. 11
| Parent link: | Journal of High Energy Physics Vol. 2021, iss. 11.— 2021.— [111, 39 p.] |
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| מחבר תאגידי: | |
| מחברים אחרים: | , , , , |
| סיכום: | Title screen 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¯t¯ 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. |
| שפה: | אנגלית |
| יצא לאור: |
2021
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| נושאים: | |
| גישה מקוונת: | https://doi.org/10.1007/JHEP11(2021)111 |
| פורמט: | אלקטרוני Book Chapter |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=668745 |
| סיכום: | Title screen 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¯t¯ 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. |
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| DOI: | 10.1007/JHEP11(2021)111 |