A systematic analysis of new physics effects in spin correlations in q qbar to t tbar

TL;DR

This paper systematically analyzes how eight new physics operators affect spin correlations in top quark pair production and decay, emphasizing the importance of angular correlations for precise measurements at the Tevatron.

Contribution

It identifies eight new physics operators influencing top pair production and provides detailed calculations of differential cross sections including interference effects.

Findings

Eight new physics operators contribute to top pair production.

Angular correlations significantly improve measurement accuracy.

Differential cross sections are fully calculated in six-particle phase space.

Abstract

I show that there are eight new physics operators that contribute to top pair production and subsequent decay in interference with the leading SM process at the Tevatron and estimate their expected statistical inaccuracies. All fully differential cross sections are calculated in the {6-particle} phase space. The observation of angular correlations dramatically improves the accuracy of the extraction.