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

Research output: Contribution to JournalArticleAcademicpeer-review

Abstract

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
Article number39
Pages (from-to)1-27
Number of pages27
JournalJournal of High Energy Physics
Volume2018
Issue number8
Early online date9 Aug 2018
DOIs
Publication statusPublished - Aug 2018

Funding

FundersFunder number
Not addedST/J004332/1, ST/N000250/1, 1681016, ST/K003410/1, 1796908, ST/N000463/1, ST/N000455/1, ST/L003163/1, ST/N000242/1
Horizon 2020 Framework Programme771642
Science and Technology Facilities CouncilST/N000447/1, LHCb, LHCb Upgrades
Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung166208

    Keywords

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

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