Measurement of $B$ Baryon Properties at CDF

Abstract

We report on mass and mean life measurements of several ground state $b-$baryons, using 9.6 ${\text{fb}}^{-1}$ of data from $p\bar{p}$ collisions at $\sqrt{s}=1.96$ TeV, and recorded with the Collider Detector at Fermilab. Data collected with triggers designed to collect events with $J/\psi \to {\mu }^{+}{\mu }^{-}$ candidates and events with hadrons displaced from the beamline are used to measure the masses and lifetimes of ${\Lambda }_b,{\Xi }_b^{-},{\Xi }_b^0$, and ${\Omega }_b^{-}$. The first evidence for the process ${\Omega }_b^{-}\to {\Omega }_c^0{\pi }^{-}$ is also shown. The results supersede our previous measurements of these quantities.

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