Observation of tW production in the single-lepton channel in pp collisions at s $$ \sqrt{s} $$ = 13 TeV
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...
| Main Authors: | , , , , , , , , , , , , , , , , , |
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| Other Authors: | |
| Format: | Article |
| Language: | English |
| Published: |
Springer Berlin Heidelberg
2021
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| Online Access: | https://hdl.handle.net/1721.1/138232 |
| _version_ | 1826201804848758784 |
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| author | Tumasyan, A. Adam, W. Andrejkovic, J. W. Bergauer, T. Chatterjee, S. Dragicevic, M. Escalante Del Valle, A. Frühwirth, R. Jeitler, M. Krammer, N. Lechner, L. Liko, D. Mikulec, I. Paulitsch, P. Pitters, F. M. Schieck, J. Schöfbeck, R. Spanring, M. |
| author2 | Massachusetts Institute of Technology. Department of Physics |
| author_facet | Massachusetts Institute of Technology. Department of Physics Tumasyan, A. Adam, W. Andrejkovic, J. W. Bergauer, T. Chatterjee, S. Dragicevic, M. Escalante Del Valle, A. Frühwirth, R. Jeitler, M. Krammer, N. Lechner, L. Liko, D. Mikulec, I. Paulitsch, P. Pitters, F. M. Schieck, J. Schöfbeck, R. Spanring, M. |
| author_sort | Tumasyan, A. |
| collection | MIT |
| description | 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
$$ \sqrt{s} $$
= 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 t
t
¯
$$ \overline{\mathrm{t}} $$
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. |
| first_indexed | 2024-09-23T11:57:29Z |
| format | Article |
| id | mit-1721.1/138232 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2024-09-23T11:57:29Z |
| publishDate | 2021 |
| publisher | Springer Berlin Heidelberg |
| record_format | dspace |
| spelling | mit-1721.1/1382322023-08-11T18:05:23Z Observation of tW production in the single-lepton channel in pp collisions at s $$ \sqrt{s} $$ = 13 TeV Tumasyan, A. Adam, W. Andrejkovic, J. W. Bergauer, T. Chatterjee, S. Dragicevic, M. Escalante Del Valle, A. Frühwirth, R. Jeitler, M. Krammer, N. Lechner, L. Liko, D. Mikulec, I. Paulitsch, P. Pitters, F. M. Schieck, J. Schöfbeck, R. Spanring, M. Massachusetts Institute of Technology. Department of Physics 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 $$ \sqrt{s} $$ = 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 t t ¯ $$ \overline{\mathrm{t}} $$ 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. 2021-11-29T16:30:10Z 2021-11-29T16:30:10Z 2021-11-15 2021-11-28T04:15:48Z Article http://purl.org/eprint/type/JournalArticle https://hdl.handle.net/1721.1/138232 Journal of High Energy Physics. 2021 Nov 15;2021(11):111 PUBLISHER_CC en https://doi.org/10.1007/JHEP11(2021)111 Creative Commons Attribution https://creativecommons.org/licenses/by/4.0/ The Author(s) application/pdf Springer Berlin Heidelberg Springer Berlin Heidelberg |
| spellingShingle | Tumasyan, A. Adam, W. Andrejkovic, J. W. Bergauer, T. Chatterjee, S. Dragicevic, M. Escalante Del Valle, A. Frühwirth, R. Jeitler, M. Krammer, N. Lechner, L. Liko, D. Mikulec, I. Paulitsch, P. Pitters, F. M. Schieck, J. Schöfbeck, R. Spanring, M. Observation of tW production in the single-lepton channel in pp collisions at s $$ \sqrt{s} $$ = 13 TeV |
| title | Observation of tW production in the single-lepton channel in pp collisions at s $$ \sqrt{s} $$ = 13 TeV |
| title_full | Observation of tW production in the single-lepton channel in pp collisions at s $$ \sqrt{s} $$ = 13 TeV |
| title_fullStr | Observation of tW production in the single-lepton channel in pp collisions at s $$ \sqrt{s} $$ = 13 TeV |
| title_full_unstemmed | Observation of tW production in the single-lepton channel in pp collisions at s $$ \sqrt{s} $$ = 13 TeV |
| title_short | Observation of tW production in the single-lepton channel in pp collisions at s $$ \sqrt{s} $$ = 13 TeV |
| title_sort | observation of tw production in the single lepton channel in pp collisions at s sqrt s 13 tev |
| url | https://hdl.handle.net/1721.1/138232 |
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