English

$C\!P$ violation in beauty and charm quarks at LHCb

High Energy Physics - Experiment 2023-07-07 v1

Abstract

The LHCb experiment has been reporting remarkable C ⁣PC\!P-violation (CPV) measurements concerning the sectors of bb and cc quarks. Recently, the new measurements of time-integrated CPV with D0K+KD^0\to K^+ K^- decays led to the first evidence (3.8σ3.8\sigma) of CPV in a single charmed decay. The first search for CPV in the D(s)+K+K+KD_{(s)}^+\to K^+K^+K^- decays was executed. The knowledge of the CKM parameter γ\gamma was improved by new results; the current combination of the LHCb measurements is: (63.83.7+3.5)\left(63.8^{+3.5}_{-3.7}\right)^\circ. The study of Bs0ϕϕB_s^0\to\phi\phi decays resulted in the most precise measurement of time-dependent CPV in any penguin-dominated BB meson decay. All the results are consistent with the Standard-Model predictions.

Keywords

Cite

@article{arxiv.2307.03094,
  title  = {$C\!P$ violation in beauty and charm quarks at LHCb},
  author = {Daniele Manuzzi},
  journal= {arXiv preprint arXiv:2307.03094},
  year   = {2023}
}

Comments

4 pages, 1 figure, contribution to the 2023 QCD session of the 57th Rencontres de Moriond