A Measurement of the B0 -> J/psi pi+pi- Branching Fraction
| dc.creator | Aubert, B. | |
| dc.date | 2002-09-07 | |
| dc.date.accessioned | 2026-07-07T12:01:50Z | |
| dc.date.available | 2026-07-07T12:01:50Z | |
| dc.description | We present a 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 with the BaBar detector at the PEP-II asymmetric-energy $e^+e^-$ storage ring. The result of this analysis is $\mathcal{B}$($B^0\to J/ψπ^+π^-$) = (4.6 $\pm$ 0.7 $\pm$ 0.6)$\times 10^{-5}$, where the first error is statistical and the second is systematic. In addition we measure $\mathcal{B}(B^0\to J/ψρ^0) = (1.6 \pm 0.6 \pm 0.4 )\times 10^{-5}$. | |
| dc.description | 7 pages, 2 postscript figues | |
| dc.identifier | https://arxiv.org/abs/hep-ex/0209013 | |
| dc.identifier | http://arxiv.org/abs/hep-ex/0209013 | |
| dc.identifier | Phys.Rev.Lett.90:091801,2003 | |
| dc.identifier | doi:10.1103/PhysRevLett.90.091801 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/207235 | |
| dc.subject | High Energy Physics - Experiment | |
| dc.title | A Measurement of the B0 -> J/psi pi+pi- Branching Fraction | |
| dc.type | text |