Search for CP violation in the charmless four-body decays of Λb0 and Ξb0 baryons using the LHCb spectrometer

  • Jan Mickelle Vargas Maratas Université Clermont Auvergne, France and Mindanao State University–Iligan Institute of Technology

Abstract

Recent measurements on the search for direct CP violation in Λb⁰ and Ξb⁰ baryons using the data recorded by the LHCb experiment during the 2011 and 2012 data taking periods are presented. In particular, a search for CP violation in charmless fully-charged four-body decays of Λb⁰ and Ξb⁰ baryons with a proton in the final state and three mesons, either as pions or kaons, is performed. The difference between the CP asymmetries in the charmless decay and in a decay with an intermediate charmed resonance with the same unpaired track in the final state is performed to cancel out charge-detection and production asymmetries. Six CP asymmetries are considered using the full phase-space of the decays. No significant CP-violation effect is observed in all the measurements.

Published
2020-09-08
How to Cite
[1]
J. M. Maratas. Search for CP violation in the charmless four-body decays of Λb0 and Ξb0 baryons using the LHCb spectrometer, Proceedings of the Samahang Pisika ng Pilipinas 38, SPP-2020-1E-02 (2020). URL: https://paperview.spp-online.org/proceedings/article/view/SPP-2020-1E-02.