Measurement of the B0 Lifetime with Partially Reconstructed B0 --> D*- l+ nu Decays

Preprint

1 February 2002

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.hep-ex/0202005

Abstract

The B0 lifetime has been measured with a sample of 23 million BBbar pairs collected by the BaBar detector at the PEP-II e+e- storage ring during 1999 and 2000. Events from the semileptonic decay B0 --> D*- l+ nu have been selected with a partial reconstruction method in which only the charged lepton and the slow pion from the D*- --> D0bar pi- decay are reconstructed. The result is tau_B0 = 1.529+/-0.012 (stat) +/- 0.029 (syst) ps.

Keywords

PARTIAL RECONSTRUCTION
SEMILEPTONIC DECAY
RECONSTRUCTED B0
B0 LIFETIME
NU DECAYS
LIFETIME

All Related Versions

Version 1, 2002-02-01, ArXiv
Version 1, 2002-03-27, ArXiv (Unconfirmed version)
Version 1, 2002-03-27, ArXiv (Unconfirmed version)
Published version: Physical Review Letters, 89 (1), 011802.

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