Tried to fit 800-2500 GeV dijet mass range. Much better fit (due to lower statistics)
. The function that I use is (function from EXO paper)*0.5*(1.0 + TMath::Erf( (mjj - m_eff) / sigma_eff ) ). Took this from https://github.com/CMSDIJET/DijetRootTreeAnalyzer/blob/master/fit/fitMjj_scouting.py .