Hadronic Branching Fractions of D^0 and D^+, and sigma(e^+e^- --> D bar{D} at E_{cm} = 3.77 GeV

Details Hadronic Branching Fractions of D^0 and D^+, and sigma(e^+e^- --> D bar{D} at E_{cm} = 3.77 GeV Hadronic Branching Fractions of D^0 and D^+, and sigma(e^+e^- --> D bar{D} at E_{cm} = 3.77 GeV

2004-08-13

arxiv.org/abs/hep-ex/0408055v1

Physics

High Energy Physics

High Energy Physics - Experiment

24 pages postscript,also available through http://www.lns.cornell.edu/public/CONF/2004/, Presented at ICHEP Aug. 16-22,2004,

Scientific paper

Using nearly 60 pb-1 of data collected with the CLEO-c detector at the psi_prime resonance, we measure absolute branching fractions for three D0 and two D+ Cabibbo-allowed hadronic decay modes, and the cross section for e+e- to D Dbar at Ecm = 3.77 GeV. We report preliminary measurements of the reference branching fractions, B(D0 to K- pi+) = (3.92\pm 0.08\pm 0.23)% and B(D+ to K- pi+ pi+) = (9.8\pm 0.4\pm 0.8)%, and preliminary measurements of other major branching fractions, B(D0 to K- pi+ pi0) = (14.3\pm 0.3\pm 1.0)%, B(D0 to K- pi+ pi- pi+) = (8.1\pm 0.2\pm 0.9)%, and B(D+ to Ks pi+) = (1.61\pm 0.08\pm 0.15)%. We determine preliminary values of the cross sections, sigma(e+ e- to D0 D0bar) = (3.47\pm 0.07\pm 0.15) nb, sigma(e+ e- to D+ D-) = (2.59\pm 0.11\pm 0.11) nb, and sigma(e+ e- to D Dbar) = (6.06\pm 0.13\pm 0.22) nb. We note that the Monte Carlo simulations used in calculating efficiencies in this analysis included final state radiation. However, the branching fractions used in the Particle Data Group averages do not include this effect. If we had not included final state radiation in our simulations, branching fractions would have been 0.5% to 2% lower.

Affiliated with

Also associated with

No associations

Rating

Hadronic Branching Fractions of D^0 and D^+, and sigma(e^+e^- --> D bar{D} at E_{cm} = 3.77 GeV does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Hadronic Branching Fractions of D^0 and D^+, and sigma(e^+e^- --> D bar{D} at E_{cm} = 3.77 GeV, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hadronic Branching Fractions of D^0 and D^+, and sigma(e^+e^- --> D bar{D} at E_{cm} = 3.77 GeV will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-200841