Observation of B0 to p Lambdabar pi-

Preprint

24 May 2003

preprint
Published by arXiv in arXiv

Abstract

We report the first observation of the charmless hyperonic B decay, B0 -> p Lambdabar pi-, using a 78 fb^-1 data sample recorded on the Upsilon(4S) resonance with the Belle detector at KEKB. The measured branching fraction is B(B0 -> p Lambdabar pi-) = (3.97 ^{+1.00}_{-0.80} +- 0.56) * 10^-6. Searches for B0 -> p Lambdabar K- and p Sigmabar0 pi- yield no significant signals and we set 90% confidence level upper limits of B(B0 -> p Lambdabar K-) < 8.2 * 10^-7 and B(B0 -> p Sigmabar0 pi-) < 3.8 * 10^-6.

Keywords

CHARMLESS HYPERONIC
SIGMABAR0 PI
LAMBDABAR PI
LAMBDABAR K
DATA SAMPLE

All Related Versions

Version 1, 2003-02-18, ArXiv
Version 2, 2003-02-21, ArXiv
Version 3, 2003-05-24, ArXiv
Version 4, 2003-06-05, ArXiv
Published version: Physical Review Letters, 90 (20), 201802.

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