Measurement of the masses and widths of the bottom baryons<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msubsup><mml:mi>Σ</mml:mi><mml:mi mathvariant="bold">b</mml:mi><mml:mo mathvariant="bold">±</mml:mo></mml:msubsup></mml:math>and<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msubsup><mml:mi>Σ</mml:mi><mml:mi mathvariant="bold">b</mml:mi><mml:mrow><mml:mo>*</mml:mo><mml:mo mathvariant="bold">±</mml:mo></mml:mrow></mml:msubsup></mml:math>

Using data from $p\overline{p}$ collisions at $\sqrt{s}=1.96\text{ }\text{ }\mathrm{TeV}$ recorded by the CDF II detector at the Fermilab Tevatron, we present improved measurements of the masses and first measurements of natural widths of the four bottom baryon resonance states ${\ensuremath{\Sigma}}_{b}^{+}$, ${\ensuremath{\Sigma}}_{b}^{*+}$ and ${\ensuremath{\Sigma}}_{b}^{\ensuremath{-}}$, ${\ensuremath{\Sigma}}_{b}^{*\ensuremath{-}}$. These states are fully reconstructed in their decay modes to ${\ensuremath{\Lambda}}_{b}^{0}{\ensuremath{\pi}}^{\ifmmode\pm\else\textpm\fi{}}$ where ${\ensuremath{\Lambda}}_{b}^{0}\ensuremath{\rightarrow}{\ensuremath{\Lambda}}_{c}^{+}{\ensuremath{\pi}}^{\ensuremath{-}}$ with ${\ensuremath{\Lambda}}_{c}^{+}\ensuremath{\rightarrow}p{K}^{\ensuremath{-}}{\ensuremath{\pi}}^{+}$. The analysis is based on a data sample corresponding to an integrated luminosity of $6.0\text{ }\text{ }{\mathrm{fb}}^{\ensuremath{-}1}$ collected by an online event selection based on tracks displaced from the $p\overline{p}$ interaction point.

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