Measurement of the e+e- -> D(*)+D(*)- cross-sections

TL;DR

This paper presents the first measurements of specific e+e- to D(*)+D(*)- cross-sections at energies well above threshold, providing new data on these processes using Belle experiment data.

Contribution

It reports the first measurements of e+e- -> D(*)+D(*)- cross-sections at sqrt{s}=10.58 GeV, including new values and upper limits for related processes.

Findings

Measured cross-sections for e+e- -> DT*+DL*- and e+e- -> D+D*T-

Set upper limits on other D(*)+D(*)- processes

Analyzed 88.9 fb-1 of Belle data

Abstract

We report first measurements of e+e- -> D(*)+D(*)- processes far above threshold. The cross-sections for e+e- -> DT*+DL*- and e+e- -> D+D*T- at sqrt{s}=10.58 GeV/c2 are measured to be 0.55 +- 0.03 +- 0.05 pb and 0.62 +- 0.03 +- 0.06 pb, respectively. We set upper limits on the cross-sections for e+e- -> DT*+DT*-, e+e- -> DL*+DL*-, e+e- -> D+D*L- and e+e- -> D+D- processes. The analysis is based on 88.9 fb-1 of data collected by the Belle experiment at the KEKB e+e- asymmetric collider.