Measurement of the $e^+e^- \to \pi^+\pi^-\pi^0$ cross section in the
energy range 0.62-3.50 GeV at Belle II
Measurement of the $e^+e^- \to \pi^+\pi^-\pi^0$ cross section in the
energy range 0.62-3.50 GeV at Belle II
We report a measurement of the $e^+e^- \to \pi^+\pi^-\pi^0$ cross section in the energy range from 0.62 to 3.50 GeV using an initial-state radiation technique. We use an $e^+e^-$ data sample corresponding to 191 $\text{fb}^{-1}$ of integrated luminosity, collected at a center-of-mass energy at or near the $\Upsilon{(4S)}$ resonance with …