Measurement of the $\Xi_b^-$ and $\Omega_b^-$ baryon lifetimes - INSPIRE

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Measurement of the $\Xi_b^-$ and $\Omega_b^-$ baryon lifetimes

LHCb

Collaboration

May 7, 2014

9 pages

Published in:

Phys.Lett.B 736 (2014) 154-162

Published: Sep 7, 2014

e-Print:

1405.1543 [hep-ex]

DOI:

10.1016/j.physletb.2014.06.064

PDG:

{{\mathit \Omega}_{{{b}}}}

Report number:

CERN-PH-EP-2014-081,
LHCB-PAPER-2014-010

Experiments:

CERN-LHC-LHCb

View in:

reference search36 citations

Citations per year

Abstract: (Elsevier)

Using a data sample of pp collisions corresponding to an integrated luminosity of 3 fb −1 , the Ξb− and Ωb− baryons are reconstructed in the Ξb−→J/ψΞ− and Ωb−→J/ψΩ− decay modes and their lifetimes measured to be τ(Ξb−)=1.55−0.09+0.10 (stat)±0.03 (syst) ps,τ(Ωb−)=1.54−0.21+0.26 (stat)±0.05 (syst) ps. These are the most precise determinations to date. Both measurements are in good agreement with previous experimental results and with theoretical predictions.

Note:

13 pages, 3 figures

bottom baryon: hadronic decay
p p: scattering
experimental results
Xi/b-
lifetime
Omega/b: lifetime: measured
LHC-B
CERN LHC Coll
Xi/b- --> J/psi(3100) Xi-
Omega/b --> J/psi(3100) Omega-

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Figures(10)

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