Abstract
The triple gluon field strength operator ${\mathit{G}}^{3}$ represents the only genuinely gluonic CP conserving term which can appear at dimension 6 within an effective strong interaction Lagrangian. Previous studies of this operator have revealed that its effect on gluon scattering is surprisingly difficult to detect. In this article, we analyze the impact of ${\mathit{G}}^{3}$ upon top quark pair production. We find that it will generate observable cross section deviations from QCD at the CERN LHC for even relatively small values of its coefficient. Furthermore, ${\mathit{G}}^{3}$ affects the transverse momentum distribution of the produced top quarks more strongly at high energies than dimension-6 four-quark and chromomagnetic moment terms in the effective Lagrangian. Top-quark--top-antiquark pair production at the LHC will therefore provide a sensitive and clean probe for the elusive triple gluon field strength operator.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
