Aubert, B;
Bona, M;
Boutigny, D;
Karyotakis, Y;
Lees, JP;
Poireau, V;
Prudent, X;
... BaBar Collaboration; + view all
(2007)
Evidence for the rare decay B+ -> D-s(+) pi(0).
PHYS REV LETT
, 98
(17)
, Article 171801. 10.1103/PhysRevLett.98.171801.
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Abstract
We have searched for the rare decay B+ -> D-s(+) pi(0). The analysis is based on a sample of 232 X 10(6) Y(4S) -> B (B) over bar decays collected with the BABAR detector at the SLAC PEP-II e(+)e(-) storage ring. We find 19.6 signal events, corresponding to a significance of 4.7 sigma. The extracted signal yield including statistical and systematic uncertainties is 20.1(-6.0-1.5)(+6.8+0.4) and we measure B(B+ -> D-s(+) pi(0)) = (1.5(-0.4)(+0.5) +/- 0.1 +/- 0.2) X x 10(-5), where the first uncertainty is statistical, the second is systematic, and the last is due to the uncertainty on the D-s(+) decay and its daughter decay branching fractions.
| Type: | Article |
|---|---|
| Title: | Evidence for the rare decay B+ -> D-s(+) pi(0) |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1103/PhysRevLett.98.171801 |
| Publisher version: | http://dx.doi.org/10.1103/PhysRevLett.98.171801 |
| Language: | English |
| Additional information: | © 2007 The American Physical Society |
| Keywords: | HADRONIC DECAYS, B-MESONS, ANNIHILATION, PHASE, JETS |
| UCL classification: | UCL 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/1303849 |
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