Search for the decay B^0 → gamma-gamma

(The BABAR Collaboration)

Research output: Contribution to journalArticlepeer-review

Abstract

We present a limit on the branching fraction for the decay B0→ ϒϒ 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) → BB decays, we establish an upper limit on the branching fraction of B(B0→ ϒϒ) < 1.7 · 10−6 at the 90% confidence level. This result substantially improves upon existing limits.

Original languageEnglish (US)
Pages (from-to)241803-1-241803-7
JournalPhysical review letters
Volume87
Issue number24
DOIs
StatePublished - Dec 10 2001

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

Fingerprint Dive into the research topics of 'Search for the decay B<sup>^</sup>0 → gamma-gamma'. Together they form a unique fingerprint.

Cite this