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Abstract: One of the major challenges for the LHC will be to extract preciseinformation from hadronic final states in the presence of the large number ofadditional soft pp collisions, pileup, that occur simultaneously with any hardinteraction in high luminosity runs. We propose a novel technique, based on jetareas, that provides jet-by-jet corrections for pileup and underlying-eventeffects. It is data driven, does not depend on Monte Carlo modelling and can beused with any jet algorithm for which a jet area can be sensibly defined. Weillustrate its effectiveness for some key processes and find that it can beapplied also in the context of the Tevatron, low-luminosity LHC and LHCheavy-ion collisions.



Autor: Matteo Cacciari, Gavin P. Salam

Fuente: https://arxiv.org/







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