Open charm studies at Belle
P.N. Lebedev Physical Institute of the Russian Academy of Sciences, Moscow, Russia
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Published online: 17 June 2019
We present the new results of measurements of the exlusive cross sections of the e+ e− annihilation to charmed meson pairs as a function of √ ceneter-of-mass energy from the open charm threashold up to using initial state radiation technique. The analysis is based on a data sample collected by the Belle detector with an integrated luminosity of 951 fb−1. The accuracy of the cross section measurement is increased by a factor of 2 in comparison with the first Belle study. We have performed the first angular analysis + −→ D*± D*∓ of the process and decomposed this exclusive cross section into three components corresponding to the diﬀerent D* helicities.
© The Authors, published by EDP Sciences, 2019
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