CERN Accelerating science

If you experience any problem watching the video, click the download button below
Download Embed
Preprint
Report number arXiv:2410.19611 ; CERN-EP-2024-237
Title Measurements of WH and ZH production with Higgs boson decays into bottom quarks and direct constraints on the charm Yukawa coupling in 13TeV pp collisions with the ATLAS detector
Related supersedes: ATLAS-CONF-2021-051
Author(s) ATLAS Collaboration  2941 人のオーサーを表示
Corporate author(s) ATLAS Collaboration
Publication 2024
Imprint 28 Oct 2024
Number of pages 68
Note 68 pages in total, author list starting page 51, 18 figures, 8 tables, submitted to JHEP. All figures including auxiliary figures are available at http://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/HIGG-2020-20
Subject category Particle Physics - Experiment
Accelerator/Facility, Experiment CERN LHC ; ATLAS
Keywords Higgs physics ; particle and resonance production ; experimental results ; associated Higgs production ; Higgs decays ; bottom quark ; charm quark
Abstract A study of the Higgs boson decaying into bottom quarks (Hbb¯) and charm quarks (Hcc¯) is performed, in the associated production channel of the Higgs boson with a W or Z boson, using 140fb1 of proton-proton collision data at s=13TeV collected by the ATLAS detector. The individual production of WH and ZH with Hbb¯ is established with observed (expected) significances of 5.3 (5.5) and 4.9 (5.6). Differential cross-section measurements of the gauge boson transverse momentum within the simplified template cross-section framework are performed in a total of 13 kinematical fiducial regions. The search for the Hcc¯ decay yields an observed (expected) upper limit at 95% confidence level of 11.5 (10.6) times the Standard Model prediction. The results are also used to set constraints on the charm coupling modifier, resulting in |κc|<4.2 at 95% confidence level. Combining the Hbb¯ and Hcc¯ measurements constrains the absolute value of the ratio of Higgs-charm and Higgs-bottom coupling modifiers (|κc/κb|) to be less than 3.6 at 95% confidence level.
Other source Inspire
Copyright/License Preprint: © 2024-2025 CERN (License: CC-BY-4.0)
Submitted by tatjana.lenz@cern.ch



 


 レコード 生成: 2024-10-28, 最終変更: 2025-01-08


フルテキスト:
Download fulltextPDF
External link:
Download fulltextPrevious draft version
  • Send to ScienceWise.info