Measurement of the $B_s$ meson lifetime

Abe, F.; Albrow, M.G.; Amendolia, S.R.; Amidei, D.; Antos, J.; Anway-Wiese, C.; Apollinari, G.; Areti, H.; Atac, M.; Auchincloss, P.

doi:10.1103/PhysRevLett.74.4988

Measurement of the $B_s$ meson lifetime

CDF

Collaboration

Jan, 1995

18 pages

Published in:

Phys.Rev.Lett. 74 (1995) 4988

e-Print:

hep-ex/9412017 [hep-ex]

DOI:

10.1103/PhysRevLett.74.4988

PDG:

{{\mathit B}_{{{s}}}^{0}}

MEAN LIFE

Report number:

FERMILAB-PUB-94-420-E

Experiments:

FNAL-E-0741

View in:

pdf

reference search48 citations

Citations per year

Abstract: (arXiv)

The lifetime of the

B_s

meson is measured using the semileptonic decay

B_s \to D_s^- \ell^+ \nu X

. The data sample consists of 19.3 pb

^{-1}

of

p \bar{p}

collisions at

\sqrt{s} = 1.8

TeV collected by the CDF detector at the Fermilab Tevatron collider during 1992-1993. There are

76 \pm 8

\ell^{+} D_s^{-}

signal events where the

D_s

is identified via the decay

D_s^{-} \to \phi \pi^{-}

,~

\phi \to K^+ K^-

. Using these events, the

B_s

meson lifetime is determined to be

\tau_{s} = 1.42^{+ 0.27}_{- 0.23} {\rm (stat)} \pm 0.11 {\rm (syst)}

ps. A measurement of the

B_s

lifetime in a low statistics sample of exclusive

B_s \to J/\psi \phi

decays is also presented in this paper.

Note:

18 pages, 3 figures (2 .ps 1 .eps)

anti-p p: colliding beams
colliding beams: anti-p p
anti-p p: inclusive reaction
Phi(1020)
decay: path length
path length: decay
CDF
experimental results
Batavia TEVATRON Coll
1800 GeV-cms

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Measurement of the BsB_sBs​ meson lifetime

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Measurement of the $B_s$ meson lifetime