Results 41 to 50 of about 3,273 (173)

Boosted Jet Tagging with Jet-Images and Deep Neural Networks

open access: yesEPJ Web of Conferences, 2016
Building on the jet-image based representation of high energy jets, we develop computer vision based techniques for jet tagging through the use of deep neural networks.
Kagan Michael   +4 more
doaj   +1 more source

Extraction of jet-medium interaction details through jet substructure for inclusive and gamma-tagged jets [PDF]

open access: yesEPJ Web of Conferences
We present a comprehensive study of jet substructure modifications in high-energy heavy-ion collisions using both inclusive jets and γ-tagged jets, based on a multi-stage jet evolution model within the Monte Carlo framework JETSCAPE.
Tachibana Yasuki
doaj   +1 more source

Systematic quark/gluon identification with ratios of likelihoods

open access: yesJournal of High Energy Physics, 2022
Discriminating between quark- and gluon-initiated jets has long been a central focus of jet substructure, leading to the introduction of numerous observables and calculations to high perturbative accuracy.
Samuel Bright-Thonney   +3 more
doaj   +1 more source

Measurement of b jet shapes in proton-proton collisions at s $$ \sqrt{s} $$ = 5.02 TeV

open access: yesJournal of High Energy Physics, 2021
We present the first study of charged-hadron production associated with jets originating from b quarks in proton-proton collisions at a center-of-mass energy of 5.02 TeV.
The CMS collaboration   +2308 more
doaj   +1 more source

Going off topics to demix quark and gluon jets in α S extractions

open access: yesJournal of High Energy Physics, 2023
Quantum chromodynamics is the theory of the strong interaction between quarks and gluons; the coupling strength of the interaction, α S , is the least precisely-known of all interactions in nature.
Matt LeBlanc   +2 more
doaj   +1 more source

Probing jet hadrochemistry in Pb–Pb collisions with ALICE [PDF]

open access: yesEPJ Web of Conferences
Jet substructure measurements in heavy-ion collisions provide constraints on jet quenching and the medium response in the quark–gluon plasma (QGP).
Cantway Sierra
doaj   +1 more source

Measurement of substructure-dependent suppression of large-radius jets with charged particles in Pb+Pb collisions with ATLAS

open access: yesPhysics Letters B
Measurements of jet substructure in Pb+Pb collisions provide key insights into the mechanism of jet quenching in the hot and dense QCD medium created in these collisions.This Letter presents a measurement of the suppression of large-radius jets with a ...
G. Aad   +2923 more
doaj   +1 more source

Quarks and gluons in the Lund plane

open access: yesJournal of High Energy Physics, 2022
Discriminating quark and gluon jets is a long-standing topic in collider phenomenology. In this paper, we address this question using the Lund jet plane substructure technique introduced in recent years. We present two complementary approaches: one where
Frédéric A. Dreyer   +2 more
doaj   +1 more source

Energy-energy correlators in p-Pb collisions at ALICE [PDF]

open access: yesEPJ Web of Conferences
Jet substructure is a powerful tool for testing QCD in elementary particle collisions. The two-point energy-energy correlator (EEC), defined as the energy-weighted cross section of particle pairs inside jets, is a novel jet-substructure observable ...
Nambrath Anjali
doaj   +1 more source

QCD resummation for groomed jet observables at NNLL+NLO

open access: yesJournal of High Energy Physics, 2023
We use a direct QCD approach to carry out the next-to-next-to-leading logarithmic (NNLL) resummation for observables groomed with the modified mass-drop tagger (Soft Drop β = 0).
Mrinal Dasgupta   +2 more
doaj   +1 more source

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