Measurement of differential cross sections and charge ratios for t-channel single top quark production in proton–proton collisions at $$\sqrt{s}=13$$s=13 $$\,\text {Te}\text {V}$$Te
Abstract A measurement is presented of differential cross sections for t-channel single top quark and antiquark production in proton–proton collisions at a centre-of-mass energy of 13$$\,\text {Te}\text {V}$$Te by the CMS experiment at the LHC. From a data set corresponding to an integrated luminos...
| Main Authors: | , , , , , , , , , , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
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Springer Berlin Heidelberg
2021
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| Online Access: | https://hdl.handle.net/1721.1/131663 |
| _version_ | 1826191190309994496 |
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| author | Sirunyan, A. M Tumasyan, A. Adam, W. Ambrogi, F. Bergauer, T. Brandstetter, J. Dragicevic, M. Erö, J. Del Valle, A. E Flechl, M. Frühwirth, R. Jeitler, M. Krammer, N. Krätschmer, I. Liko, D. Madlener, T. Mikulec, I. Rad, N. Schieck, J. Schöfbeck, R. |
| author2 | Massachusetts Institute of Technology. Department of Physics |
| author_facet | Massachusetts Institute of Technology. Department of Physics Sirunyan, A. M Tumasyan, A. Adam, W. Ambrogi, F. Bergauer, T. Brandstetter, J. Dragicevic, M. Erö, J. Del Valle, A. E Flechl, M. Frühwirth, R. Jeitler, M. Krammer, N. Krätschmer, I. Liko, D. Madlener, T. Mikulec, I. Rad, N. Schieck, J. Schöfbeck, R. |
| author_sort | Sirunyan, A. M |
| collection | MIT |
| description | Abstract
A measurement is presented of differential cross sections for t-channel single top quark and antiquark production in proton–proton collisions at a centre-of-mass energy of 13$$\,\text {Te}\text {V}$$Te by the CMS experiment at the LHC. From a data set corresponding to an integrated luminosity of 35.9$$\,\text {fb}^{-1}$$fb-1, events containing one muon or electron and two or three jets are analysed. The cross section is measured as a function of the top quark transverse momentum ($$p_{\mathrm{T}} $$pT), rapidity, and polarisation angle, the charged lepton $$p_{\mathrm{T}} $$pT and rapidity, and the $$p_{\mathrm{T}} $$pT of the $$\text {W}{}{}$$W boson from the top quark decay. In addition, the charge ratio is measured differentially as a function of the top quark, charged lepton, and $$\text {W}{}{}$$W boson kinematic observables. The results are found to be in agreement with standard model predictions using various next-to-leading-order event generators and sets of parton distribution functions. Additionally, the spin asymmetry, sensitive to the top quark polarisation, is determined from the differential distribution of the polarisation angle at parton level to be $$0.440 \pm 0.070$$0.440±0.070, in agreement with the standard model prediction. |
| first_indexed | 2024-09-23T08:51:52Z |
| format | Article |
| id | mit-1721.1/131663 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2024-09-23T08:51:52Z |
| publishDate | 2021 |
| publisher | Springer Berlin Heidelberg |
| record_format | dspace |
| spelling | mit-1721.1/1316632023-12-22T18:58:21Z Measurement of differential cross sections and charge ratios for t-channel single top quark production in proton–proton collisions at $$\sqrt{s}=13$$s=13 $$\,\text {Te}\text {V}$$Te Sirunyan, A. M Tumasyan, A. Adam, W. Ambrogi, F. Bergauer, T. Brandstetter, J. Dragicevic, M. Erö, J. Del Valle, A. E Flechl, M. Frühwirth, R. Jeitler, M. Krammer, N. Krätschmer, I. Liko, D. Madlener, T. Mikulec, I. Rad, N. Schieck, J. Schöfbeck, R. Massachusetts Institute of Technology. Department of Physics Abstract A measurement is presented of differential cross sections for t-channel single top quark and antiquark production in proton–proton collisions at a centre-of-mass energy of 13$$\,\text {Te}\text {V}$$Te by the CMS experiment at the LHC. From a data set corresponding to an integrated luminosity of 35.9$$\,\text {fb}^{-1}$$fb-1, events containing one muon or electron and two or three jets are analysed. The cross section is measured as a function of the top quark transverse momentum ($$p_{\mathrm{T}} $$pT), rapidity, and polarisation angle, the charged lepton $$p_{\mathrm{T}} $$pT and rapidity, and the $$p_{\mathrm{T}} $$pT of the $$\text {W}{}{}$$W boson from the top quark decay. In addition, the charge ratio is measured differentially as a function of the top quark, charged lepton, and $$\text {W}{}{}$$W boson kinematic observables. The results are found to be in agreement with standard model predictions using various next-to-leading-order event generators and sets of parton distribution functions. Additionally, the spin asymmetry, sensitive to the top quark polarisation, is determined from the differential distribution of the polarisation angle at parton level to be $$0.440 \pm 0.070$$0.440±0.070, in agreement with the standard model prediction. 2021-09-20T17:29:26Z 2021-09-20T17:29:26Z 2020-05-06 2020-06-26T12:51:50Z Article http://purl.org/eprint/type/JournalArticle https://hdl.handle.net/1721.1/131663 The European Physical Journal C. 2020 May 06;80(5):370 PUBLISHER_CC en https://doi.org/10.1140/epjc/s10052-020-7858-1 Creative Commons Attribution https://creativecommons.org/licenses/by/4.0/ CERN for the benefit of the CMS collaboration application/pdf Springer Berlin Heidelberg Springer Berlin Heidelberg |
| spellingShingle | Sirunyan, A. M Tumasyan, A. Adam, W. Ambrogi, F. Bergauer, T. Brandstetter, J. Dragicevic, M. Erö, J. Del Valle, A. E Flechl, M. Frühwirth, R. Jeitler, M. Krammer, N. Krätschmer, I. Liko, D. Madlener, T. Mikulec, I. Rad, N. Schieck, J. Schöfbeck, R. Measurement of differential cross sections and charge ratios for t-channel single top quark production in proton–proton collisions at $$\sqrt{s}=13$$s=13 $$\,\text {Te}\text {V}$$Te |
| title | Measurement of differential cross sections and charge ratios for t-channel single top quark production in proton–proton collisions at $$\sqrt{s}=13$$s=13 $$\,\text {Te}\text {V}$$Te |
| title_full | Measurement of differential cross sections and charge ratios for t-channel single top quark production in proton–proton collisions at $$\sqrt{s}=13$$s=13 $$\,\text {Te}\text {V}$$Te |
| title_fullStr | Measurement of differential cross sections and charge ratios for t-channel single top quark production in proton–proton collisions at $$\sqrt{s}=13$$s=13 $$\,\text {Te}\text {V}$$Te |
| title_full_unstemmed | Measurement of differential cross sections and charge ratios for t-channel single top quark production in proton–proton collisions at $$\sqrt{s}=13$$s=13 $$\,\text {Te}\text {V}$$Te |
| title_short | Measurement of differential cross sections and charge ratios for t-channel single top quark production in proton–proton collisions at $$\sqrt{s}=13$$s=13 $$\,\text {Te}\text {V}$$Te |
| title_sort | measurement of differential cross sections and charge ratios for t channel single top quark production in proton proton collisions at sqrt s 13 s 13 text te text v te |
| url | https://hdl.handle.net/1721.1/131663 |
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