We report a new measurement of the exclusive eþe- ? DðÞD± cross sections as a function of the
center-of-mass energy from the DðÞD± threshold through
ffiffiffis
p
¼ 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 eþe- ? DD± process and
decompose this exclusive cross section into three components corresponding to the D helicities.
Revised: February 4, 2021 |
Published: January 10, 2018
Citation
Zhukova V., G. Pakhlova, P. Pakhlov, I. Adachi, H. Aihara, S. Al Said, and D.M. Asner, et al. 2018.Angular analysis of the e+e- - D(*)+D*= process near the open charm threshold using initial-state radiation.Physical Review D 97, no. 1:Article No. 012002.PNNL-SA-131585.doi:10.1103/PhysRevD.97.012002