Measurement of the Bbar0 and B- Meson Lifetimes

Details Measurement of the Bbar0 and B- Meson Lifetimes Measurement of the Bbar0 and B- Meson Lifetimes

2000-08-09

arxiv.org/abs/hep-ex/0008016v1

Phys.Lett.B492:275-287,2000

Physics

High Energy Physics

High Energy Physics - Experiment

13 pages, 3 figures, submitted to ICHEP2000, Osaka

Scientific paper

10.1016/S0370-2693(00)01093-5

The lifetimes of the Bbar0 and B- mesons are measured using a sample of about four million hadronic Z decays collected from 1991 to 1995 with the ALEPH detector at LEP. The data sample has been recently reprocessed, achieving a substantial improvement in the tracking performance. Semileptonic decays of Bbar0 and b- mesons are partially reconstructed by identifying events containing a lepton with an associated D*+ or D0 meson. The proper time of the B meson is estimated from the measured decay length and the momentum of the D-lepton system. A fit to the proper time of 1880 D*+l- and 2856 D0l- candidates yields the following results: tauBbar0 = 1.518 +- 0.053 +- 0.034 ps, tauB = 1.648 +- 0.049 +- 0.035 ps, tauB-/tauBbar0 = 1.085 +- 0.059 +- 0.018.

Affiliated with

Also associated with

No associations

Rating

Measurement of the Bbar0 and B- Meson Lifetimes 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 Measurement of the Bbar0 and B- Meson Lifetimes, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Measurement of the Bbar0 and B- Meson Lifetimes will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-524159