First Observation of Bottom Baryon Sigma_b States at CDF

TL;DR

This paper reports the first observation of bottom baryon Sigma_b states using a large dataset from the CDF detector, identifying four new states consistent with Sigma_b(*)+/- baryons.

Contribution

The study provides the first experimental evidence of Sigma_b baryon states at CDF, expanding understanding of bottom baryon spectroscopy.

Findings

Four new Sigma_b(*)+/- states observed

States are consistent with theoretical predictions

Analysis used 1 fb^-1 of data from CDF II

Abstract

We present the latest results on the search of bottom baryon states Sigma_b using 1 fb^-1 of CDF data. The study is performed with the world's largest sample of fully reconstructed Lambda_b decays collected by CDF II detector at the collision energy of 1.96 TeV in the hadronic trigger path. We observe 4 new states consistent with Sigma_b(*)+/- bottom baryons.