Measurements of the observed cross sections for $e^{+}{e}^{-}\to$ light hadrons at $\sqrt{s}=$ 3.773 and 3.650 GeV

Abstract

Using the data sets of 17.3 pb${}^{-1}$ collected at $\sqrt{s}=$ 3.773 GeV and 6.5 pb${}^{-1}$ collected at $\sqrt{s}=$ 3.650 GeV with the BESII detector at the BEPC collider, we have measured the observed cross sections for 18 exclusive light hadron final states produced in $e^{+}{e}^{-}$ annihilation at the two energy points.

9 pages, 5 figures