Treating jet correlations in high pile-up at hadron collidersTreating jet correlations in high pile-up at hadron colliders
Faculty of Sciences. Physics
Elementary Particle Physics
Physics letters: B. - Amsterdam, 1967, currens
754(2016), p. 260-263
University of Antwerp
Experiments in the high-luminosity runs at the Large Hadron Collider face the challenges of very large pile-up. Primary techniques to deal with this are based on precise vertex and track reconstruction. Outside tracker acceptances, however, lie regions of interest for many aspects of the LHC physics program. We explore complementary approaches to pile-up treatment and propose a data-driven jet-mixing method which can be used outside tracker acceptances without depending on Monte Carlo generators. The method can be applied to treat correlation observables and take into account, besides the jet transverse momentum pedestal, effects of hard jets from pile-up. (C) 2016 The Authors. Published by Elsevier B.V.