English

CP Asymmetries in Strange Baryon Decays

High Energy Physics - Phenomenology 2017-11-23 v4 High Energy Physics - Experiment

Abstract

While indirect & direct CP violations (CPV) had been established in the decays of strange & beauty mesons, none have been done for baryons. There are different "roads" for finding CP asymmetries in the decays of strange baryons; they are highly non-trivial ones. The HyperCP Collaboration had probed CPV in the decays of single Ξ\Xi & Λ\Lambda [Phys.Rev.Lett 93 (2004) 262001]. We talk about future lessons from e+ee^+e^- collisions at BESIII/BEPCII: probing decays of pairs of strange baryons, namely Λ\Lambda, Σ\Sigma & Ξ\Xi. Realistic goals are to learn about non-perturbative QCD. One can hope to find CPV in the decays of strange baryons; one can also dream to find impact of New Dynamics (ND). We point out that a new important era starts with the BESIII/BEPCII data accumulated by the end of 2018.

Keywords

Cite

@article{arxiv.1704.04708,
  title  = {CP Asymmetries in Strange Baryon Decays},
  author = {I. I. Bigi and Xian-Wei Kang and Hai-Bo Li},
  journal= {arXiv preprint arXiv:1704.04708},
  year   = {2017}
}

Comments

final version, slight typos corrected