Abstract
A proton-proton collision data sample, corresponding to an integrated luminosity of collected by LHCb at and 8 TeV, is used to reconstruct , decays. Using the , decay mode for calibration, the lifetime ratio and the absolute lifetime of the baryon are measured to be , , where the uncertainties are statistical, systematic and from the calibration mode (for only). A measurement is also made of the mass difference, , and the corresponding mass, which yields , . These results are consistent with previous measurements.
- Received 7 April 2016
DOI:https://doi.org/10.1103/PhysRevD.93.092007
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© 2016 CERN, for the LHCb Collaboration