English

Time-integrated CP asymmetries in meson and baryon decays

High Energy Physics - Experiment 2026-01-26 v1

Abstract

Measurements of CP asymmetries in hadron decays integrated over time provide access to direct CP violation, which arises from differences between the amplitudes of CP-conjugate decay processes. These proceedings present an overview of recent measurements from the LHCb and Belle II experiments, including progress on the determination of the CKM angle γ\gamma, the first observation of CP violation in baryon decays, and new studies of direct CP violation in DD mesons. The outlook for measurements with datasets whose collection is underway is also discussed.

Keywords

Cite

@article{arxiv.2601.16787,
  title  = {Time-integrated CP asymmetries in meson and baryon decays},
  author = {Alex Gilman},
  journal= {arXiv preprint arXiv:2601.16787},
  year   = {2026}
}

Comments

For the LHCb and Belle II collaborations. Proceedings of the 32nd International Symposium on Lepton Photon Interactions at High Energies, Madison, Wisconsin