Reduction of the PDF Uncertainty in the High-Mass Drell-Yan Spectrum with ePump

Uncertainties in the parametrization of Parton Distribution Functions (PDFs) are becoming a serious limiting systematic uncertainty in Large Hadron Collider (LHC) searches for Beyond the Standard Model (BSM) physics. This is especially true for measurements at high scales induced by quark and anti-quark collisions, where Drell-Yan continuum backgrounds are dominant. Using ePump to emulate a candidate PDF global fitting strategy, it is shown that judicious selection of measurable kinematical quantities can reduce the assigned systematic PDF uncertainties by significant factors. This will be possible by the huge statistical precision of future LHC Standard Model datasets.