Speaker
Ms
Valentina Zhukova
(LPI)
Description
New results are obtained for the exclusive cross sections of the $e^+e^-$ annihilation into charmed hadron pairs with initial state radiation. The analysis is based on the data sample collected with the Belle detector with the integrated luminosity of 951 fb${}^{-1}$. The accuracy of the cross section measurement is increased by a factor of 2 compared with the previous Belle study and, for the first time, the $e^+ e^- \to D^{\ast}D^{\ast}$ cross section is decomposed into three components corresponding to different helicities of the $D^{*}$'s in the final state.
Primary author
Ms
Valentina Zhukova
(LPI)
