Search for the Decay B0 -> ppbar
BaBar Collaboration
Abstract
We present the result of a search for the charmless two-body baryonic decay B0 -> ppbar in a sample of 88 million Y(4S) -> BBbar decays collected by the BaBar detector at the SLAC PEP-II asymmetric-energy B Factory. We use Cherenkov radiation to identify protons cleanly, and determine the signal yield with a maximum-likelihood fit technique using kinematic and topological information. We find no evidence for a signal and place a 90% confidence-level upper limit of BF(B0 -> ppbar) < 2.7 x 10-7.
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