Identification of boosted, hadronically decaying W bosons and comparisons with ATLAS data taken at √(s) = 8 s = 8 TeV

2015/10/31 by G. Aad, ATLAS Collaboration, B. Abbott +98 · 2 citations
Physics and Astronomy · #ATLAS experiment #Atlas (anatomy) #Atlas detector #Boson #Detector #High-Energy Particle Collisions Research #Jet (fluid) #Large Hadron Collider #Nuclear physics #Optics #Particle Detector Development and Performance #Particle physics #Particle physics theoretical and experimental studies #Physics #Substructure #hep-ex

paper · pdf · doi:10.1140/epjc/s10052-016-3978-z

published as Eur. Phys. J. C 76(3) (2016) 1-47 · 53 pages plus author list + cover page (70 pages total), 25 figures, 8 tables, submitted to Eur. Phys. J. C, All figures including auxiliary figures are available at https://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/PERF-2015-03/

openalex publication_date 2016/03/01 · arxiv created 2016/03/23 · arxiv updated 2016/03/24 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/06

Abstract

This paper reports a detailed study of techniques for identifying boosted, hadronically decaying W bosons using 20.3 fb -1 of proton-proton collision data collected by the ATLAS detector at the LHC at a centre-of-mass energy s = 8 TeV. A range of techniques for optimising the signal jet mass resolution are combined with various jet substructure variables. The results of these studies in Monte Carlo simulations show that a simple pairwise combination of groomed jet mass and one substructure variable can provide a 50 % efficiency for identifying W bosons with transverse momenta larger than 200 GeV while maintaining multijet background efficiencies of 2-4 % for jets with the same transverse momentum. These signal and background efficiencies are confirmed in data for a selection of tagging techniques. Contents 1 Introduction . . . . . . . . .

Citations

• Review of Particle Physics
• Event generation with SHERPA 1.1
• Electron reconstruction and identification efficiency measurements with the ATLAS detector using the 2011 LHC proton–proton collision data
• Hadronization Corrections to Jet Cross Sections in Deep-Inelastic Scattering
• The anti-ktjet clustering algorithm
• Measurements of normalized differential cross sections fortt¯production inppcollisions at(s)=7 TeVusing the ATLAS detector
• The catchment area of jets
• ALPGEN, a generator for hard multiparton processes in hadronic collisions
• Performance of the ATLAS Trigger System in 2010
• Quark and gluon jet substructure
• WWscattering at the CERN LHC
• Multiparton interactions in photoproduction at HERA
• Big-Bang Nucleosynthesis

Cited by

• Combination of searches for heavy resonances decaying into bosonic and leptonic final states using 36 fb−1 of proton-proton collision data at s=13 TeV with the ATLAS detector
• In situ calibration of large-radius jet energy and mass in 13 TeV proton–proton collisions with the ATLAS detector