Jet shapes have the potential to play a role in many LHC analyses, for
example in quark-gluon discrimination or jet substructure analyses for hadronic
decays of boosted heavy objects. Most shapes, however, are significantly
affected by pileup. We introduce a general method to correct for pileup effects
in shapes, which acts event-by-event and jet-by-jet, and accounts also for
hadron masses. It involves a numerical determination, for each jet, of a given
shape's susceptibility to pileup. Together with existing techniques for
determining the level of pileup, this then enables an extrapolation to zero
pileup. The method can be used for a wide range of jet shapes and we show its
successful application in the context of quark/gluon discrimination and
top-tagging.
%0 Journal Article
%1 soyez2012pileup
%A Soyez, Gregory
%A Salam, Gavin P.
%A Kim, Jihun
%A Dutta, Souvik
%A Cacciari, Matteo
%D 2012
%K boosted pileup
%T Pileup subtraction for jet shapes
%U http://arxiv.org/abs/1211.2811
%X Jet shapes have the potential to play a role in many LHC analyses, for
example in quark-gluon discrimination or jet substructure analyses for hadronic
decays of boosted heavy objects. Most shapes, however, are significantly
affected by pileup. We introduce a general method to correct for pileup effects
in shapes, which acts event-by-event and jet-by-jet, and accounts also for
hadron masses. It involves a numerical determination, for each jet, of a given
shape's susceptibility to pileup. Together with existing techniques for
determining the level of pileup, this then enables an extrapolation to zero
pileup. The method can be used for a wide range of jet shapes and we show its
successful application in the context of quark/gluon discrimination and
top-tagging.
@article{soyez2012pileup,
abstract = {Jet shapes have the potential to play a role in many LHC analyses, for
example in quark-gluon discrimination or jet substructure analyses for hadronic
decays of boosted heavy objects. Most shapes, however, are significantly
affected by pileup. We introduce a general method to correct for pileup effects
in shapes, which acts event-by-event and jet-by-jet, and accounts also for
hadron masses. It involves a numerical determination, for each jet, of a given
shape's susceptibility to pileup. Together with existing techniques for
determining the level of pileup, this then enables an extrapolation to zero
pileup. The method can be used for a wide range of jet shapes and we show its
successful application in the context of quark/gluon discrimination and
top-tagging.},
added-at = {2012-11-21T15:04:20.000+0100},
author = {Soyez, Gregory and Salam, Gavin P. and Kim, Jihun and Dutta, Souvik and Cacciari, Matteo},
biburl = {https://www.bibsonomy.org/bibtex/2dcc1db5a771a5af7000864994bcf35ff/wc},
description = {[1211.2811] Pileup subtraction for jet shapes},
interhash = {ec313b2402851a3f7173eea320c356be},
intrahash = {dcc1db5a771a5af7000864994bcf35ff},
keywords = {boosted pileup},
note = {cite arxiv:1211.2811Comment: 5 pages, 2 figures},
timestamp = {2012-11-21T15:04:20.000+0100},
title = {Pileup subtraction for jet shapes},
url = {http://arxiv.org/abs/1211.2811},
year = 2012
}