Measurement of the e+ e- ---> D(*)+ D(*)- cross-sections
Jan, 20046 pages
Published in:
- Phys.Rev.D 70 (2004) 071101
e-Print:
- hep-ex/0401038 [hep-ex]
Report number:
- BELLE-PRERPINT-2004-3,
- KEK-PREPRINT-2003-119
Experiments:
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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.Note:
- To be submitted to PRL Report-no: Belle Prerpint 2004-3, KEK Preprint 2003-119
- 13.87.Fh
- 13.66.Bc
- 12.39.Hg
- electron positron: colliding beams
- electron positron: annihilation
- D: pair production
- D*(2010): pair production
- D*(2010): polarization
- polarization: longitudinal
- polarization: transverse
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