Signals for Double Parton Scattering at the Fermilab Tevatron
Manuel Drees, Tao Han
TL;DR
Four double parton scattering processes are examined at the Fermilab Tevatron energy facility and the last channel may provide the first unambiguous observation of multiple parton interactions, even with the existing data sample accumulated by the TeVatron collider experiments.
Abstract
Four double-parton scattering processes are examined at the Fermilab Tevatron energy. With optimized kinematical cuts and realistic parton level simulation for both signals and backgrounds, we find large samples of four-jet and three-jet+one-photon events with signal to background ratio being 20\%-30\%, and much cleaner signals from two-jet+two-photon and two-jet+$e^+e^-$ final states. The last channel may provide the first unambiguous observation of multiple parton interactions, even with the existing data sample accumulated by the Tevatron collider experiments.