Measurement of the $B^0$ lifetime with partially reconstructed $B^0 \to D^{*-} \ell+ \nu_\ell$ decays

Aubert, Bernard; Boutigny, D.; Gaillard, J.M.; Hicheur, A.; Karyotakis, Y.; Lees, J.P.; Robbe, P.; Tisserand, V.; Zghiche, A.; Palano, A.

doi:10.1103/PhysRevLett.89.011802

Measurement of the $B^0$ lifetime with partially reconstructed $B^0 \to D^{*-} \ell+ \nu_\ell$ decays

BaBar

Collaboration

Feb, 2002

7 pages

Published in:

Phys.Rev.Lett. 89 (2002) 011802,
Phys.Rev.Lett. 89 (2002) 169903 (erratum)

e-Print:

hep-ex/0202005 [hep-ex]

DOI:

PDG:

{{\mathit B}^{0}}

MEAN LIFE

Report number:

SLAC-PUB-9128,
BABAR-PUB-02-02

Experiments:

SLAC-PEP2-BABAR

View in:

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Abstract: (arXiv)

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.

electron positron: colliding beams
electron positron: annihilation
Upsilon(10570): electroproduction
B: pair production
B0: semileptonic decay
D*(2010): hadronic decay
final state: (pi lepton)
B0: lifetime
BaBar
experimental results

References(10)

Figures(0)

A Study of anti-B0 ---> D+ lepton- anti-neutrino and B0 anti-B0 mixing using partial D+ reconstruction

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Collaboration

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CLEO

Collaboration

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