Collinear drop

A bstract We introduce collinear drop jet substructure observables, which are unaffected by contributions from collinear radiation, and systematically probe soft radiation within jets. These observables can be designed to be either sensitive or insensitive to process-dependent soft radiation origina...

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Published inThe journal of high energy physics Vol. 2020; no. 6; pp. 64 - 59
Main Authors Chien, Yang-Ting, Stewart, Iain W.
Format Journal Article
LanguageEnglish
Published Berlin/Heidelberg Springer Berlin Heidelberg 01.06.2020
Springer Nature B.V
Springer Berlin
SpringerOpen
Subjects
Classical and Quantum Gravitation
Clustering
colliders
Computer simulation
Dependent variables
Elementary Particles
Gluons
High energy physics
jet substructure
Jets
Logarithms
Monte Carlo simulation
Physics
Physics and Astronomy
PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
QCD
QCD Phenomenology
Quantum chromodynamics
Quantum Field Theories
Quantum Field Theory
Quantum Physics
Radiation
Regular Article - Theoretical Physics
Relativity Theory
String Theory
Substructures
Subtraction
Jets
QCD Phenomenology
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Summary:A bstract We introduce collinear drop jet substructure observables, which are unaffected by contributions from collinear radiation, and systematically probe soft radiation within jets. These observables can be designed to be either sensitive or insensitive to process-dependent soft radiation originating from outside the jet. Such collinear drop observables can be exploited as variables to distinguish quark, gluon, and color neutral initiated jets, for testing predictions for perturbative soft radiation in Monte Carlo simulations, for assessing models and universality for hadronization corrections, for examining the efficiency of pileup subtraction methods, and for any other application that leaves an imprint on soft radiation. We discuss examples of collinear drop observables that are based both on clustering and on jet shapes. Using the soft-collinear effective theory we derive factorization expressions for collinear drop observables from QCD jets, and carry out a resummation of logarithmically enhanced contributions at next-to-leading-logarithmic order. We also identify an infinite class of collinear drop observables for which the leading double logarithms are absent.
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content type line 14
SC0011090; PHY-1419008
National Science Foundation (NSF)
USDOE Office of Science (SC), Nuclear Physics (NP)
ISSN:1029-8479
1029-8479
DOI:10.1007/JHEP06(2020)064