Measuring the CKM Matrix Element Vtb at DZero and CDF

TL;DR

This paper reports measurements of the CKM matrix element Vtb using Tevatron data, demonstrating improved precision and model-independent methods through single top production analysis.

Contribution

It introduces a new measurement approach for Vtb that reduces reliance on Standard Model assumptions and enhances precision using upgraded Tevatron data.

Findings

Vtb measured with improved precision

Extension to model-independent measurement

Demonstrated potential of single top production analysis

Abstract

I present measurements by the CDF collaboration of the Standard Model three generation CKM matrix element Vtb and of a special case extension with additional assumptions, using current Tevatron ttbar data. I then show how we can significantly improve the precision on Vtb and at the same time extend the measurement so it is not constrained by Standard Model assumptions, using single top production at the upgraded Tevatron.