Measurement of B-meson lifetimes using fully reconstructed B decays produced

Authors

Darin Acosta, University of FloridaFollow
Kenneth A. Bloom, University of Nebraska-LincolnFollow
Collider Detector at Fermilab Collaboration

Date of this Version

5-1-2002

Comments

Published by American Physical Society. Phys. Rev. Lett. 89, 281801 (2002). http://prd.aps.org. Copyright © 2002 American Physical Society. Permission to use.

Abstract

We present an improved measurement of b-meson lifetimes using fully reconstructed B-decays produced in pp̅ collisions at √s =1.8 TeV, using 114 pb^-1 of data collected at the Collider Detector at Fermilab. We obtain τ (B⁺)=1.636±0.058(stat) ±0.025(syst) ps, τ (B⁰)=1.497±0.073(stat) ±0.032(syst) ps and for the lifetime ratio τ (B⁺)/(B⁰)=1.093±0.066(stat) ±0.028(syst).