Top Quark Production at the Tevatron: Probing Anomalous Chromomagnetic Moments and Theories of Low Scale Gravity

TL;DR

This paper reviews how anomalous chromomagnetic moments and low scale gravity theories affect top quark pair production at the Tevatron, highlighting potential experimental sensitivities to new physics at TeV scales.

Contribution

It provides a comparative analysis of the impacts of anomalous chromomagnetic moments and Kaluza-Klein gravitons on top quark production, emphasizing experimental detectability.

Findings

Anomalous chromomagnetic moments mainly rescale the total cross section.

Kaluza-Klein graviton exchange influences cross sections and kinematic distributions.

Run II data can probe effective Planck scales around 1 TeV.

Abstract

We review the effects of an anomalous chromomagnetic moment on top quark pair production at the Tevatron for Run II. Apart from an overall rescaling by the total cross section these couplings have little influence on top production characteristics. We then examine how the exchange of a Kaluza-Klein tower of gravitons arising from the low scale quantum gravity scenario of Arkani-Hamed, Dimopoulos and Dvali influences top pair cross sections and several associated kinematical distributions. The data that will be available with Run II luminosities is shown to be sensitive to values of the effective Planck scale of order 1 TeV or more.