Inclusive b Decays to Wrong Sign Charmed Mesons

Details Inclusive b Decays to Wrong Sign Charmed Mesons Inclusive b Decays to Wrong Sign Charmed Mesons

2003-03-22

arxiv.org/abs/hep-ex/0303031v1

Phys.Lett.B561:26-40,2003

Physics

High Energy Physics

High Energy Physics - Experiment

18 pages, 6 figures, Accepted by Phys. Lett. B

Scientific paper

10.1016/S0370-2693(03)00387-3

The production of wrong sign charmed mesons b -> \bar D_{(s)} X, D_{(s)}=(D0,D+,D_s), is studied using the data collected by the DELPHI experiment in the years 1994 and 1995. Charmed mesons in Z -> b bbar events are exclusively reconstructed by searching for the decays D0 -> K- pi+, D+ -> K- pi+ pi+ and D_s^+ -> phi pi+ -> K+ K- pi+. The wrong sign contribution is extracted by using two discriminant variables: the charge of the b-quark at decay time, estimated from the charges of identified particles, and the momentum of the charmed meson in the rest frame of the b-hadron. The inclusive branching fractions of b-hadrons into wrong sign charm mesons are measured to be: Br(b -> \bar D0 X) + Br(b -> D- X) = (9.3 +/- 1.7(stat) +/- 1.3(syst) +/- 0.4(Br))%, Br(b -> D_s^- X) = (10.1 +/- 1.0(stat) +/- 0.6(syst) +/- 2.8(Br))% where the first error is statistical, the second and third errors are systematic.

Affiliated with

Also associated with

No associations

Rating

Inclusive b Decays to Wrong Sign Charmed Mesons 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 Inclusive b Decays to Wrong Sign Charmed Mesons, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Inclusive b Decays to Wrong Sign Charmed Mesons will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-476136