- Abstract:
-
Using a data sample of pp collisions corresponding to an integrated luminosity of $3~ \rm fb^{-1}$, the $\Xi_b^-$ and $\Omega_b^-$ baryons are reconstructed in the $\Xi_b^- \rightarrow J/\psi \Xi^-$ and $\Omega_b^- \rightarrow J/\psi \Omega^-$ decay modes and their lifetimes measured to be $\tau (\Xi_b^-) = 1.55\, ^{+0.10}_{-0.09}~{\rm(stat)} \pm 0.03\,{\rm(syst)}$ ps, $\tau (\Omega_b^-) = 1.54\, ^{+0.26}_{-0.21}~{\rm(stat)} \pm 0.05\,{\rm(syst)}$ ps. These are the most precise determin...
Expand abstract - Publication status:
- Published
- Publisher copy:
- 10.1016/j.physletb.2014.06.064
-
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- Journal:
- Phys. Lett. B
- Volume:
- 736
- Issue:
- 4
- Pages:
- 154-162
- Publication date:
- 2014-05-07
- DOI:
- ISSN:
-
0370-2693
- URN:
-
uuid:5cdf0ce1-9f41-413a-b4b2-f44d170fc657
- Source identifiers:
-
21618
- Local pid:
- pubs:21618
- Keywords:
- Copyright date:
- 2014
- Notes:
- 13 pages, 3 figures
Journal article
Measurement of the $Ξ_b^-$ and $Ω_b^-$ baryon lifetimes
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