Abstract
Three-body and decays are studied using a data sample corresponding to an integrated luminosity of collected by the LHCb experiment in proton-proton collisions at center-of-mass energies of 7 and 8 TeV. Evidence of violation in the decay is found in regions of the phase space, representing the first measurement of this kind for a final state containing baryons. Measurements of the forward-backward asymmetry of the light meson in the rest frame yield and . In addition, the branching fraction of the decay is measured to be , where BF denotes the uncertainty on secondary branching fractions.
- Received 22 July 2014
DOI:https://doi.org/10.1103/PhysRevLett.113.141801
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© 2014 CERN, for the LHCb Collaboration