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Article
Report number arXiv:2203.01808 ; CERN-EP-2022-025
Title Study of Bc+J/ψDs+ and Bc+J/ψDs+ decays in pp collisions at s=13 TeV with the ATLAS detector
Related titleStudy of Bc+J/ψDs+ and Bc+J/ψDs+ decays in pp collisions at s=13 TeV with the ATLAS detector
Author(s) ATLAS Collaboration  2957 人のオーサーを表示
Corporate Author(s) ATLAS Collaboration
Publication 2022-08-05
Imprint 04 Mar 2022
Number of pages 42
Note 39 pages in total, author list starting page 23, 4 figures, 5 tables, published in JHEP. All figures including auxiliary figures are available at http://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/BPHY-2018-08
In: JHEP 2208 (2022) 087
DOI 10.1007/JHEP08(2022)087 (publication)
Subject category Particle Physics - Experiment
Accelerator/Facility, Experiment CERN LHC ; ATLAS
Free keywords flavor physics ; B physics ; experimental results ; B sub c meson
Abstract A study of Bc+J/ψDs+ and Bc+J/ψDs+ decays using 139 fb1 of integrated luminosity collected with the ATLAS detector from s=13 TeV pp collisions at the LHC is presented. The ratios of the branching fractions of the two decays to the branching fraction of the Bc+J/ψπ+ decay are measured: B(Bc+J/ψDs+)/B(Bc+J/ψπ+)=2.76±0.47 and B(Bc+J/ψDs+)/B(Bc+J/ψπ+)=5.33±0.96. The ratio of the branching fractions of the two decays is found to be B(Bc+J/ψDs+)/B(Bc+J/ψDs+)=1.93±0.26. For the Bc+J/ψDs+ decay, the transverse polarization fraction, Γ±±/Γ, is measured to be 0.70±0.11. The reported uncertainties include both the statistical and systematic components added in quadrature. The precision of the measurements exceeds that in all previous studies of these decays. These results supersede those obtained in the earlier ATLAS study of the same decays with s=7 and 8 TeV pp collision data. A comparison with available theoretical predictions for the measured quantities is presented.
Related document supersedes: ATLAS-CONF-2021-046
Copyright/License publication: © 2022-2025 CERN (License: CC-BY-4.0), sponsored by SCOAP³
preprint: © 2022-2025 CERN (License: CC-BY-4.0)



Corresponding record in: Inspire
Email contact: tatjana.lenz@cern.ch


 レコード 生成: 2022-03-04, 最終変更: 2024-10-03


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