Using data from pp̅ collisions at √s=1.96 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 Σb+, Σb*+ and Σb-, Σb*-. These
states are fully reconstructed in their decay modes to Λb0π± where
Λb0→Λc+π- with Λc+→pK-π+. The analysis is based on a data sample
corresponding to an integrated luminosity of 6.0 fb-1 collected
by an online event selection based on tracks displaced from the pp̅
interaction point.
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Updated: Wednesday, 2012 May 16 16:18:10 CDT automatically from input from Stephanie A Schuler