Measurement of cross sections for D0 anti-D0 and D+ D- production in e+ e- annihilation at s**(1/2) = 3.773-GeV
Collaboration
7 pages
Published in:
- Phys.Lett.B 603 (2004) 130-137
e-Print:
- hep-ex/0411013 [hep-ex]
Experiments:
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Abstract: (Elsevier)
The cross sections for D0D¯0 and D+D− production at 3.773 GeV have been measured with BES-II detector at BEPC. These measurements are made by analyzing a data sample of about 17.3 pb −1 collected at the center-of-mass energy of 3.773 GeV. Observed cross sections for the charm pair production are radiatively corrected to obtain the tree level cross section for DD¯ production. A measurement of the total tree level hadronic cross section is obtained from the tree level DD¯ cross section and an extrapolation of the Ruds below the open charm threshold.Note:
- 7 pages, 2 figures, It was submitted to Physics Letters B in July, 2004
- electron positron: colliding beams
- electron positron: annihilation
- D0: pair production
- D+: pair production
- D: hadronic decay
- final state: (K (n)pi)
- channel cross section
- radiative correction
- tree approximation
- cross section: hadronic
References(13)
Figures(3)