Aubert, B;
Barate, R;
Boutigny, D;
Gaillard, JM;
Hicheur, A;
Karyotakis, Y;
Lees, JP;
... BABAR Collaboration; + view all
(2003)
Observation of a significant excess of pi(0)pi(0) events in B meson decays.
PHYS REV LETT
, 91
(24)
, Article 241801. 10.1103/PhysRevLett.91.241801.
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Abstract
We present a study of the decay B-0-->pi(0)pi(0) based on a sample of 124x10(6) B (B) over bar pairs recorded by the BABAR detector at the PEP-II asymmetric-energy B Factory at SLAC. We observe 46+/-13+/-3 events, where the first error is statistical and the second is systematic, corresponding to a significance of 4.2 standard deviations including systematic uncertainties. We measure the branching fraction B(B-0-->pi(0)pi(0))=(2.1+/-0.6+/-0.3)x10(-6), averaged over B-0 and (B) over bar (0) decays.
| Type: | Article |
|---|---|
| Title: | Observation of a significant excess of pi(0)pi(0) events in B meson decays |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1103/PhysRevLett.91.241801 |
| Publisher version: | http://dx.doi.org/10.1103/PhysRevLett.91.241801 |
| Language: | English |
| Additional information: | © 2003 The American Physical Society |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences |
| URI: | https://discovery.ucl.ac.uk/id/eprint/1303637 |
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