Particle-level pileup subtraction for jets and jet shapes
Peter BertaFaculty of Mathematics and Physics, Charles University in Prague, V Holešovičkách 2, Prague, Czech RepublicMartin SpoustaFaculty of Mathematics and Physics, Charles University in Prague, V Holešovičkách 2, Prague, Czech RepublicDavid W. MillerEnrico Fermi Institute, University of Chicago, Chicago, IL, U.S.ARupert LeitnerFaculty of Mathematics and Physics, Charles University in Prague, V Holešovičkách 2, Prague, Czech Republic
2014en
ABI
Abstract
We present an extension to the jet area-based pileup subtraction for both jet kinematics and jet shapes. A particle-level approach is explored whereby the jet constituents are corrected or removed using an extension of the methods currently being employed by the LHC experiments. Several jet shapes and nominal jet radii are used to assess the performance in simulated events with pileup levels equivalent to approximately 30 and 100 interactions per bunch crossing, which are characteristic of both the LHC Run I and Run II conditions. An improved performance in removing the pileup contributions is found when using the new subtraction method. The performance of the new procedure is also compared to other existing methods.
Identifiers
Citations and references
Cited by 20 references