New Results on Bottom Baryons with the CDF II Detector

TL;DR

This paper reports precise measurements of masses, widths, and isospin splittings of bottom baryon resonances Sigma_b and Sigma_b* using data from the CDF II detector, advancing understanding of heavy baryon properties.

Contribution

It provides new experimental results on bottom baryon resonances, including mass, width, and isospin splitting measurements, based on a large data sample from the CDF II detector.

Findings

Measured masses and widths of Sigma_b(*) baryons

Determined isospin mass splittings for Sigma_b and Sigma_b*

Enhanced understanding of bottom baryon spectroscopy

Abstract

We present measurements of the masses and widths of four bottom baryon resonances, Sigma_b(*)+-, reconstructed in the Lambda_b pi+- hadron decay modes. The isospin mass splittings for the Sigma_b and Sigma_b* multiplets are extracted as well. The analysis is based on a data sample corresponding to an integrated luminosity of 6 fb^-1 .