Results 21 to 30 of about 13,014 (293)

Jet mass and substructure of inclusive jets in √s = 7 TeV pp collisions with the ATLAS experiment [PDF]

open access: yes, 2012
Recent studies have highlighted the potential of jet substructure techniques to identify the hadronic decays of boosted heavy particles. These studies all rely upon the assumption that the internal substructure of jets generated by QCD radiation is well ...
Aad, G.   +4 more
core   +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

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

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

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

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

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

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

Lund and Cambridge multiplicities for precision physics

open access: yesJournal of High Energy Physics, 2022
We revisit the calculation of the average jet multiplicity in high-energy collisions. First, we introduce a new definition of (sub)jet multiplicity based on Lund declusterings obtained using the Cambridge jet algorithm.
Rok Medves   +2 more
doaj   +1 more source

Quark and Gluon Tagging at the LHC [PDF]

open access: yes, 2011
Being able to distinguish light-quark jets from gluon jets on an event-by-event basis could significantly enhance the reach for many new physics searches at the Large Hadron Collider.
G. Dissertori   +2 more
core   +2 more sources

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