INVESTIGADORES
OTERO Y GARZON Gustavo Javier
artículos
Título:
Performance of jet substructure techniques for large-R jets in proton-proton collisions at sqrt(s) = 7 TeV using the ATLAS detector
Autor/es:
G. OTERO Y GARZON, R. PIEGAIA, ET. AL. , THE ATLAS COLLABORATION
Revista:
JOURNAL OF HIGH ENERGY PHYSICS - (Online)
Editorial:
Springer
Referencias:
Año: 2013
ISSN:
1029-8479
Resumen:
This paper presents the application of a variety of techniques to study
jet substructure. The performance of various modified jet algorithms, or
jet grooming techniques, for several jet
types and event topologies is investigated for jets with transverse
momentum larger than 300 GeV. Properties of jets subjected to the
mass-drop filtering, trimming, and pruning algorithms are found to have a
reduced sensitivity to multiple proton-proton interactions, are more
stable at high luminosity and improve the physics potential of searches
for heavy boosted objects. Studies of the expected discrimination power
of jet mass and jet substructure observables in searches for new physics
are also presented. Event samples enriched in boosted W and Z
bosons and top-quark pairs are used to study both the individual jet
invariant mass scales and the efficacy of algorithms to tag boosted
hadronic objects. The analyses presented use the full 2011 ATLAS
dataset, corresponding to an integrated luminosity of 4.7 ± 0.1 fb−1 from proton-proton collisions produced by the Large Hadron Collider at a centre-of-mass energy of s√=7 TeV.