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CP Violation, Top Quarks and the Tevatron Upgrade

B. Grzadkowski, B. Lampe, K. J. Abraham

Abstract

In order to observe a signal of possible CP violation in top-quark couplings, we study top-quark production and decay under the conditions of the Tevatron upgrade. Transverse energy asymmetries sensitive to CP violation are defined. Applying the recently proposed optimal method, we calculate the statistical significance for the direct observation of CP violation in the production and subsequent decay of top quarks.

CP Violation, Top Quarks and the Tevatron Upgrade

Abstract

In order to observe a signal of possible CP violation in top-quark couplings, we study top-quark production and decay under the conditions of the Tevatron upgrade. Transverse energy asymmetries sensitive to CP violation are defined. Applying the recently proposed optimal method, we calculate the statistical significance for the direct observation of CP violation in the production and subsequent decay of top quarks.

Paper Structure

This paper contains 5 sections, 26 equations, 2 figures, 2 tables.

Table of Contents

  1. 1. Introduction
  2. 2. The optimal method
  3. 3. $C\!P$-violating transverse energy asymmetries
  4. 4. The optimal observables
  5. 5. Summary

Figures (2)

  • Figure 1: Transverse energy asymmetry as defined in Eq. (\ref{['lll']}) for muons from semileptonic top-quark decays, as induced by $C\!P$ violating couplings $c_P$ and $c_D$ at the production and decay vertex, respectively.
  • Figure 2: Transverse energy asymmetry as defined in Eq. (\ref{['112']}) for muons from semileptonic top-quark decays, as induced by $C\!P$ violating couplings $c_P$ and $c_D$ at the production and decay vertex, respectively.