Measurement of $\Sigma_b$ Baryons with CDF II Detector
ORAL
Abstract
In 2006 CDF Collaboration reported a first observation of bottom baryon states $\Sigma_{b}$. Based on $\sim$~5.0~fb$^{-1}$ of CDF data we present a high statistics measurements of strongly decaying b-baryons based on a data sample of fully reconstructed $\Lambda_{b}$ decays collected by CDF~II detector at $\sqrt{s} = 1.96$~TeV in several trigger paths. The confirmation of the discovery and the first independent mass and widths measurements of all four states $\Sigma_{b}^{(*)+}$ and $\Sigma_{b}^{(*)-}$ will be presented.
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