dc.contributor.author | CMS Collaboration | |
dc.date.accessioned | 2022-08-31T21:53:25Z | |
dc.date.available | 2022-08-31T21:53:25Z | |
dc.date.issued | 2020-07-20 | |
dc.identifier.citation | The CMS collaboration., Sirunyan, A.M., Tumasyan, A. et al. Measurement of the cross section for tt¯ production with additional jets and b jets in pp collisions at s√ = 13 TeV. J. High Energ. Phys. 2020, 125 (2020). https://doi.org/10.1007/JHEP07(2020)125 | en_US |
dc.identifier.uri | http://hdl.handle.net/1808/33390 | |
dc.description.abstract | Measurements of the cross section for the production of top quark pairs in association with a pair of jets from bottom quarks (σtt¯bb¯¯¯) and in association with a pair of jets from quarks of any flavor or gluons (σtt¯jj) and their ratio are presented. The data were collected in proton-proton collisions at a center-of-mass energy of 13 TeV by the CMS experiment at the LHC in 2016 and correspond to an integrated luminosity of 35.9 fb−1. The measurements are performed in a fiducial phase space and extrapolated to the full phase space, separately for the dilepton and lepton+jets channels, where lepton corresponds to either an electron or a muon. The results of the measurements in the fiducial phase space for the dilepton and lepton+jets channels, respectively, are σtt¯jj = 2.36±0.02 (stat)±0.20 (syst) pb and 31.0±0.2 (stat)±2.9 (syst) pb, and for the cross section ratio 0.017 ± 0.001 (stat) ± 0.001 (syst) and 0.020 ± 0.001 (stat) ± 0.001 (syst). The values of σtt¯bb¯¯¯ are determined from the product of the σtt¯jj and the cross section ratio, obtaining, respectively, 0.040±0.002 (stat)±0.005 (syst) pb and 0.62±0.03 (stat)±0.07 (syst) pb. These measurements are the most precise to date and are consistent, within the uncertainties, with the standard model expectations obtained using a matrix element calculation at next-to-leading order in quantum chromodynamics matched to a parton shower. | en_US |
dc.publisher | Springer | en_US |
dc.rights | Copyright CERN, for the benefit of the CMS Collaboration. This article is distributed under the terms of the Creative Commons
Attribution License (CC-BY 4.0). | en_US |
dc.rights.uri | http://creativecommons.org/licenses/by/4.0/ | en_US |
dc.subject | Hadron-Hadron scattering (experiments) | en_US |
dc.subject | Jets | en_US |
dc.subject | Top physics | en_US |
dc.title | Measurement of the cross section for tt¯ production with additional jets and b jets in pp collisions at s√ = 13 TeV | en_US |
dc.type | Article | en_US |
kusw.kuauthor | Bean, Alice Louise | |
kusw.kudepartment | Physics & Astronomy | en_US |
kusw.oanotes | Per Sherpa Romeo 08/31/2022:Journal of High Energy Physics
[Open panel below]Publication Information
TitleJournal of High Energy Physics (JHEP) [English]
ISSNs
Print: 1126-6708
Electronic: 1029-8479
URLhttps://www.springer.com/journal/13130
Publishers
Scuola Internazionale Superiore di Studi Avanzati (SISSA) [Associate Organisation]
Springer [Commercial Publisher]
DOAJ Listinghttps://doaj.org/toc/1029-8479
Requires APCNo [Data provided by DOAJ]
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LicenceCC BY 4
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ConditionsPublished source must be acknowledged | en_US |
dc.identifier.doi | 10.1007/JHEP07(2020)125 | en_US |
kusw.oaversion | Scholarly/refereed, publisher version | en_US |
kusw.oapolicy | This item meets KU Open Access policy criteria. | en_US |
kusw.proid | ID210479810560 | en_US |
dc.rights.accessrights | openAccess | en_US |