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# Search for the Decay $B^0 \to p\overline{p}$

Abstract : We present the result of a search for the charmless two-body baryonic decay B^0 -> 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(B^0 -> ppbar) < 2.7 x 10^-7.
Document type :
Journal articles

http://hal.in2p3.fr/in2p3-00023345
Contributor : Claudine Bombar Connect in order to contact the contributor
Submitted on : Friday, November 26, 2004 - 11:52:23 AM
Last modification on : Tuesday, January 25, 2022 - 12:48:06 PM

### Citation

B. Aubert, R. Barate, D. Boutigny, F. Couderc, J.M. Gaillard, et al.. Search for the Decay $B^0 \to p\overline{p}$. Physical Review D, American Physical Society, 2004, 69, pp.091503. ⟨10.1103/PhysRevD.69.091503⟩. ⟨in2p3-00023345⟩

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