A measurement of B+ and B0 lifetimes using {Mathematical expression} events

Journal article

A measurement of B meson lifetimes is presented using data collected from 1991 to 1993 by the DELPHI detector at the LEP collider. Samples of events with a D meson and a lepton in the same jet are selected where {Mathematical expression} and D*ℓ+ events originate mainly from the semileptonic decays of B+ and B0 mesons, respectively. From the reconstructed B decay length and the estimated B momentum, taking into account the dilution due to B decays into {Mathematical expression}, the following B meson lifetimes and lifetime ratio are measured: {Mathematical expression} and an average lifetime of B+ and B0 mesons is obtained: {Mathematical expression} © 1995 Springer-Verlag.

Authors: Abreu, P; Adam, W; Adye, T; Agasi, E; Ajinenko, I

• Journal: Zeitschrift für Physik C Particles and Fields
• Volume: 68
• Issue: 1
• Pages: 13-23
• Publication date: 1995-03-01
• DOI: 10.1007/BF01579800
• EISSN: 1434-6052
• ISSN: 0170-9739
• Language: English