Work

Non-global logarithms in filtered jet algorithms

Year: 2010
Type: article
Abstract: We analytically and numerically study the effect of perturbative gluons emission on the “Filtering analysis”, which is part of a subjet analysis procedure proposed two years ago to possibly identify a low-mass Higgs boson decaying into $ b\bar b $ at the LHC. This leads us to examine the non-global structure of the resulting perturbative series in the leading single-log large-N c approximation, including all-orders numerical results, simple analytical approximations to them and comments on the structure of their series expansion. We then use these results to semi-analytically optimize the parameters of the Filtering analysis so as to suppress as much as possible the effect of underlying event and pile-up on the Higgs mass peak reconstruction while keeping the major part of the perturbative radiation from the $ b\bar b $ dipole.
Language: English
Open Access status: hybrid
Estimated APC paid:
OpenAlex ID: W2012075741
FWCI: 2.058
Cites: 86
Cited by: 41
Related to: 10