VSE knjižnice (vzajemna bibliografsko-kataložna baza podatkov COBIB.SI)
  • Measurements of ▫$WH$▫ and ▫$ZH$▫ production with Higgs boson decays into bottom quarks and direct constraints on the charm Yukawa coupling in 13 TeV pp collisions with the ATLAS detector
    Aad, Georges ...
    A study of the Higgs boson decaying into bottom quarks (H → ) and charm quarks (H → ) is performed, in the associated production channel of the Higgs boson with a W or Z boson, using 140 fb−1 of ... proton-proton collision data at = 13 TeV collected by the ATLAS detector. The individual production of WH and ZH with H → is established with observed (expected) significances of 5.3 (5.5) and 4.9 (5.6) standard deviations, respectively. 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 H → 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 H → and H → 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.
    Vir: The journal of high energy physics [Elektronski vir]. - ISSN 1029-8479 (Vol. 2025, [article number] 75, 2025, 1-71 str.)
    Vrsta gradiva - e-članek ; neleposlovje za odrasle
    Leto - 2025
    Jezik - angleški
    COBISS.SI-ID - 238889219