corner
corner

Phys. Rev. Lett. 87, 241803 (2001) [7 pages]

Search for the Decay B0γγ

Download: PDF (136 kB) Buy this article Export: BibTeX or EndNote (RIS)

B. Aubert et al. (BABAR Collaboration)
Show All Authors/Affiliations

Received 24 July 2001; published 27 November 2001

We present a limit on the branching fraction for the decay B0γγ using data collected at the ϒ(4S) resonance with the BABAR detector at the PEP-II asymmetric energy e+e- collider. Based on the observation of one event in the signal region, out of a sample of 21.3×106 e+e-ϒ(4S)→BB̅ decays, we establish an upper limit on the branching fraction of B(B0γγ)<1.7×10-6 at the 90% confidence level. This result substantially improves upon existing limits.

© 2001 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevLett.87.241803
DOI:
10.1103/PhysRevLett.87.241803
PACS:
13.40.Hq, 13.20.He