CP Violation In Baryon Decays At LHCb

Abstract

Observation in astronomy suggests that our Universe contains an abundance of matter over antimatter, which can only be explained if the combined CP symmetry is violated. Studies of CP violation have driven the flavor physics with the aim of testing the Standard Model of particle physics and searching for physics beyond. CP violation is discovered in strange, beauty and charm meson systems, however no conclusive sign of CP violation in baryon decays has been observed yet. This review summarizes CP violation studies performed by the LHCb experiment in charmless decays and rare decays of beauty baryons and singly Cabibbo suppressed decays of charm baryons. A brief prospects for future LHCb measurements are also discussed.

arXiv comment18 pages, 8 figures, Review for the MPDI special issue "Symmetry/Asymmetry in Baryon decays: Polarization, Hyperon Asymmetry Parameters and CP Violation"

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