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.
Physical Review D
Digital Object Identifier (DOI)
et al., V. Zhukova and Kulasiri, Ratnappuli L., "Angular analysis of the e + e − → DðÞD∓ process near the open charm threshold using initial-state radiation" (2018). Faculty Publications. 4196.