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arXiv · 0906.4214

Measurement of cross sections of exclusive $e^+ e^- \to VP$ processes at $\sqrt{s}=10.58$ GeV

K. Belous·M. Shapkin
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Abstract

The cross sections for the reactions $e^+e^- \to ϕη, \quad ϕη', \quad ρη, \quad ρη'$ have been measured using a data sample of 516 fb$^{-1}$ collected with the Belle detector at the KEKB asymmetric-energy $e^+e^-$ collider. The corresponding values of the cross sections are: $1.4 \pm 0.4 \pm 0.1$ fb $(ϕη)$, $5.3 \pm 1.1 \pm 0.4$ fb $(ϕη')$, $3.1 \pm 0.5 \pm 0.1$ fb $(ρη)$ and $3.3 \pm 0.6 \pm 0.2$ fb $(ρη')$. The energy dependence of the cross sections is presented using Belle measurements together with those of CLEO and BaBar.

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K. Belous, M. Shapkin. 2009-11-09. Measurement of cross sections of exclusive $e^+ e^- \to VP$ processes at $\sqrt{s}=10.58$ GeV. https://doi.org/10.1016/j.physletb.2009.10.037

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