Measurement of the WW Cross Section using the Random Forest Algorithm

The pp→WW process has historically shows discrepancies between predicted and measured cross-section values, greater than other electro weak processes. Standard analyses rely heavily on jet multiplicity cuts to remove major backgrounds. These cuts lead to hard to calculate log correction factors which could be the cause of the discrepancies. We present the measurement of the WW→2l2nu cross-section without strict jet multiplicity cuts, relying instead on a set of Random Forest Classifiers. With this technique we measure the pp→WW→2l2nu cross-section.