Results 21 to 30 of about 12,486 (149)

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

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

Boosted objects and jet substructure at the LHC. Report of BOOST2012, held at IFIC Valencia, 23rd–27th of July 2012 [PDF]

open access: yes, 2013
This report of the BOOST2012 workshop presents the results of four working groups that studied key aspects of jet substructure. We discuss the potential of first-principle QCD calculations to yield a precise description of the substructure of jets and ...
Mateu Barreda, Vicent   +2 more
core   +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

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

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

Recombination Algorithms and Jet Substructure: Pruning as a Tool for Heavy Particle Searches

open access: yes, 2009
We discuss jet substructure in recombination algorithms for QCD jets and single jets from heavy particle decays. We demonstrate that the jet algorithm can introduce significant systematic effects into the substructure.
Ellis, Stephen D.   +2 more
core   +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

Jets and Photons

open access: yes, 2012
This Letter applies the concept of `jets', as constructed from calorimeter cell four-vectors, to jets composed (primarily) of photons (or leptons). Thus jets become a superset of both traditional objects such as QCD-jets, photons, and electrons, and more
Ellis, Stephen D.   +2 more
core   +1 more source

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