Production of Prompt Charmonia in $e^+e^-$ Annihilation at $\sqrt{s}\approx 10.6$ GeV
| dc.creator | Abe, K. | |
| dc.date | 2001-10-05 | |
| dc.date.accessioned | 2026-07-07T12:01:39Z | |
| dc.date.available | 2026-07-07T12:01:39Z | |
| dc.description | The production of prompt $J/ψ$, $ψ(2S)$, $χ_{c1}$ and $χ_{c2}$ is studied using a $32.4 fb^{-1}$ data sample collected with the Belle detector at the $Υ(4S)$ and 60 MeV below the resonance. The yield of prompt $J/ψ$ mesons in the $Υ(4S)$ sample is compatible with that of continuum production; we set an upper limit ${\cal B}(Υ(4S) \to J/ψX) < 1.9 \times 10^{-4}$ at the 95% confidence level, and find $σ(e^{+}e^{-} \to J/ψX)=1.47\pm 0.10 \pm 0.13$ pb. The cross-sections for prompt $ψ(2S)$ and direct $J/ψ$ are measured. The $J/ψ$ momentum spectrum, production angle distribution and polarization are studied. | |
| dc.description | submitted to Phys. Rev. Lett | |
| dc.identifier | https://arxiv.org/abs/hep-ex/0110012 | |
| dc.identifier | http://arxiv.org/abs/hep-ex/0110012 | |
| dc.identifier | Phys.Rev.Lett.88:052001,2002 | |
| dc.identifier | doi:10.1103/PhysRevLett.88.052001 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/207167 | |
| dc.subject | High Energy Physics - Experiment | |
| dc.title | Production of Prompt Charmonia in $e^+e^-$ Annihilation at $\sqrt{s}\approx 10.6$ GeV | |
| dc.type | text |