Аннотация

We report a new measurement of the exclusive e+e-→D(∗)±D∗ cross sections as a function of the center-of-mass energy from the D(∗)±D∗ threshold through s=6.0 GeV, using the initial-state radiation technique. The analysis is based on a data sample collected with 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 over the first Belle study. We perform the first angular analysis of the e+e-→D∗±D∗ process and decompose this exclusive cross section into three components corresponding to the D∗ helicities.

Язык оригиналаанглийский
Номер статьи012002
Число страниц21
ЖурналPhysical Review D
Том97
Номер выпуска1
DOI
СостояниеОпубликовано - 10 янв 2018

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