Search for CP violation using triple product asymmetries in Λb 0 → pK π + π , Λb 0 → pK K + K and Ξb 0 → pK K π + decays

The Lhcb Collaboration

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10 Scopus citations


A search for CP and P violation using triple-product asymmetries is performed with Λb 0 → pKπ+π, Λb 0 → pKK+K and Ξb 0 → pKKπ+ decays. The data sample corresponds to integrated luminosities of 1.0 fb−1 and 2.0 fb−1, recorded with the LHCb detector at centre-of-mass energies of 7 TeV and 8 TeV, respectively. The CP - and P - violating asymmetries are measured both integrating over all phase space and in specific phase-space regions. No significant deviation from CP or P symmetry is found. The first observation of Λb 0 → pKχc0(1P)(→π+π, K+K) decay is also reported.

Original languageEnglish (US)
Article number39
JournalJournal of High Energy Physics
Issue number8
StatePublished - Aug 1 2018


  • B physics
  • CP violation
  • Flavor physics
  • Hadron-Hadron scattering (experiments)

ASJC Scopus subject areas

  • Nuclear and High Energy Physics


Dive into the research topics of 'Search for CP violation using triple product asymmetries in Λ<sub>b</sub> <sup>0</sup> → pK <sup>−</sup> π <sup>+</sup> π <sup>−</sup>, Λ<sub>b</sub> <sup>0</sup> → pK <sup>−</sup> K <sup>+</sup> K <sup>−</sup> and Ξ<sub>b</sub> <sup>0</sup> → pK <sup>−</sup> K <sup>−</sup> π <sup>+</sup> decays'. Together they form a unique fingerprint.

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