2010/02/28 by Mathieu Rubin · 2 citations
Mathematics · Physics and Astronomy · #Algorithm #Bar (unit) #Cosmology and Gravitation Theories #Gluon #Higgs boson #High-Energy Particle Collisions Research #Jet (fluid) #Large Hadron Collider #Logarithm #Mathematical analysis #Mathematics #Particle physics #Particle physics theoretical and experimental studies #Physics #Quark #Series (stratigraphy) #Simple (philosophy) #hep-ph
paper · pdf · doi:10.1007/jhep05(2010)005
47 pages, 25 figures, 1 figure and a few comments added, version accepted for publication in JHEP
openalex publication_date 2010/05/01 · arxiv created 2010/05/10 · arxiv updated 2010/05/11 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
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 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 b dipole.