Measurement of the Soft-Drop Jet Mass in pp Collisions at √ s=13 TeV with the ATLAS detector

Jet substructure observables have significantly extended the search program for physics beyond the standard model at the Large Hadron Collider. The state-of-the-art tools have been motivated by theoretical calculations, but there has never been a direct comparison between data and calculations of je...

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Autor principal: Aaboud, M.
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spelling todo:paper_00319007_v121_n9_p_Aaboud2023-10-03T14:42:51Z Measurement of the Soft-Drop Jet Mass in pp Collisions at √ s=13 TeV with the ATLAS detector Aaboud, M. Drops Hadrons Intelligent systems Microstrip devices Monte Carlo methods Particle accelerators Detector effects Differential cross section Large Hadron Collider Logarithm approximation Proton proton collisions The standard model Theoretical calculations Transverse momenta Tellurium compounds Jet substructure observables have significantly extended the search program for physics beyond the standard model at the Large Hadron Collider. The state-of-the-art tools have been motivated by theoretical calculations, but there has never been a direct comparison between data and calculations of jet substructure observables that are accurate beyond leading-logarithm approximation. Such observables are significant not only for probing the collinear regime of QCD that is largely unexplored at a hadron collider, but also for improving the understanding of jet substructure properties that are used in many studies at the Large Hadron Collider. This Letter documents a measurement of the first jet substructure quantity at a hadron collider to be calculated at next-to-next-to-leading-logarithm accuracy. The normalized, differential cross section is measured as a function of log10ρ 2 , where ρ is the ratio of the soft-drop mass to the ungroomed jet transverse momentum. This quantity is measured in dijet events from 32.9 fb ?1 of √ s = 13 TeV protonproton collisions recorded by the ATLAS detector. The data are unfolded to correct for detector effects and compared to precise QCD calculations and leading-logarithm particle-level Monte Carlo simulations. © 2018 CERN, for the ATLAS Collaboration. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_00319007_v121_n9_p_Aaboud
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Drops
Hadrons
Intelligent systems
Microstrip devices
Monte Carlo methods
Particle accelerators
Detector effects
Differential cross section
Large Hadron Collider
Logarithm approximation
Proton proton collisions
The standard model
Theoretical calculations
Transverse momenta
Tellurium compounds
spellingShingle Drops
Hadrons
Intelligent systems
Microstrip devices
Monte Carlo methods
Particle accelerators
Detector effects
Differential cross section
Large Hadron Collider
Logarithm approximation
Proton proton collisions
The standard model
Theoretical calculations
Transverse momenta
Tellurium compounds
Aaboud, M.
Measurement of the Soft-Drop Jet Mass in pp Collisions at √ s=13 TeV with the ATLAS detector
topic_facet Drops
Hadrons
Intelligent systems
Microstrip devices
Monte Carlo methods
Particle accelerators
Detector effects
Differential cross section
Large Hadron Collider
Logarithm approximation
Proton proton collisions
The standard model
Theoretical calculations
Transverse momenta
Tellurium compounds
description Jet substructure observables have significantly extended the search program for physics beyond the standard model at the Large Hadron Collider. The state-of-the-art tools have been motivated by theoretical calculations, but there has never been a direct comparison between data and calculations of jet substructure observables that are accurate beyond leading-logarithm approximation. Such observables are significant not only for probing the collinear regime of QCD that is largely unexplored at a hadron collider, but also for improving the understanding of jet substructure properties that are used in many studies at the Large Hadron Collider. This Letter documents a measurement of the first jet substructure quantity at a hadron collider to be calculated at next-to-next-to-leading-logarithm accuracy. The normalized, differential cross section is measured as a function of log10ρ 2 , where ρ is the ratio of the soft-drop mass to the ungroomed jet transverse momentum. This quantity is measured in dijet events from 32.9 fb ?1 of √ s = 13 TeV protonproton collisions recorded by the ATLAS detector. The data are unfolded to correct for detector effects and compared to precise QCD calculations and leading-logarithm particle-level Monte Carlo simulations. © 2018 CERN, for the ATLAS Collaboration.
format JOUR
author Aaboud, M.
author_facet Aaboud, M.
author_sort Aaboud, M.
title Measurement of the Soft-Drop Jet Mass in pp Collisions at √ s=13 TeV with the ATLAS detector
title_short Measurement of the Soft-Drop Jet Mass in pp Collisions at √ s=13 TeV with the ATLAS detector
title_full Measurement of the Soft-Drop Jet Mass in pp Collisions at √ s=13 TeV with the ATLAS detector
title_fullStr Measurement of the Soft-Drop Jet Mass in pp Collisions at √ s=13 TeV with the ATLAS detector
title_full_unstemmed Measurement of the Soft-Drop Jet Mass in pp Collisions at √ s=13 TeV with the ATLAS detector
title_sort measurement of the soft-drop jet mass in pp collisions at √ s=13 tev with the atlas detector
url http://hdl.handle.net/20.500.12110/paper_00319007_v121_n9_p_Aaboud
work_keys_str_mv AT aaboudm measurementofthesoftdropjetmassinppcollisionsats13tevwiththeatlasdetector
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