A Measurement of the B0 --> J/psi pi+pi- Branching Fraction
| dc.creator | The BABAR Collaboration | |
| dc.creator | Aubert, B. | |
| dc.date | 2002-03-26 | |
| dc.date.accessioned | 2026-07-07T03:35:01Z | |
| dc.date.available | 2026-07-07T03:35:01Z | |
| dc.description | We present a preliminary measurement of the branching fraction for the decay of the neutral $B$ meson into the final state J/$ψπ^+π^-$. The data set contains approximately 56 million $B\bar{B}$ pairs produced at the $Υ(4S)$ resonance and recorded by the BaBar detector at the PEP-II $e^+e^-$ collider. The result of this analysis is $\mathcal{B}(B^0\to J/ψπ^+π^-$) = (5.0 $\pm$ 0.7 $\pm$ 0.6)$\times 10^{-5}$, where the first error is statistical and the second is systematic. | |
| dc.description | 16 pages, 1 postscript figure, presented at the XXXVIIth Rencontres de Moriond on QCD and Hadronic Interactions | |
| dc.identifier | https://arxiv.org/abs/hep-ex/0203034 | |
| dc.identifier | http://arxiv.org/abs/hep-ex/0203034 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/37209 | |
| dc.subject | High Energy Physics - Experiment | |
| dc.title | A Measurement of the B0 --> J/psi pi+pi- Branching Fraction | |
| dc.type | text |