Measurement of jet track functions in pp collisions at root s=13 TeV with the ATLAS detector

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21220%2F25%3A00386953" target="_blank" >RIV/68407700:21220/25:00386953 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68407700:21240/25:00386953 RIV/68407700:21340/25:00386953 RIV/68407700:21670/25:00386953

Výsledek na webu

<a href="https://doi.org/10.1016/j.physletb.2025.139680" target="_blank" >https://doi.org/10.1016/j.physletb.2025.139680</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.physletb.2025.139680" target="_blank" >10.1016/j.physletb.2025.139680</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Measurement of jet track functions in pp collisions at root s=13 TeV with the ATLAS detector

Popis výsledku v původním jazyce

Measurements of jet substructure are key to probing the energy frontier at colliders, and many of them use track-based observables which take advantage of the angular precision of tracking detectors. Theoretical calculations of track-based observables require 'track functions', which characterize the transverse momentum fraction r(q) carried by charged hadrons from a fragmenting quark or gluon. This letter presents a direct measurement of r(q) distributions in dijet events from the 140 fb(-1) of proton-proton collisions at root s = 13 TeV recorded with the ATLAS detector. The data are corrected for detector effects using machine-learning methods. The scale evolution of the moments of the r(q) distribution is sensitive to non-linear renormalization group evolution equations of QCD, and is compared with analytic predictions. When incorporated into future theoretical calculations, these results will enable a precision program of theory-data comparison for track-based jet substructure observables.

Název v anglickém jazyce

Measurement of jet track functions in pp collisions at root s=13 TeV with the ATLAS detector

Popis výsledku anglicky

Measurements of jet substructure are key to probing the energy frontier at colliders, and many of them use track-based observables which take advantage of the angular precision of tracking detectors. Theoretical calculations of track-based observables require 'track functions', which characterize the transverse momentum fraction r(q) carried by charged hadrons from a fragmenting quark or gluon. This letter presents a direct measurement of r(q) distributions in dijet events from the 140 fb(-1) of proton-proton collisions at root s = 13 TeV recorded with the ATLAS detector. The data are corrected for detector effects using machine-learning methods. The scale evolution of the moments of the r(q) distribution is sensitive to non-linear renormalization group evolution equations of QCD, and is compared with analytic predictions. When incorporated into future theoretical calculations, these results will enable a precision program of theory-data comparison for track-based jet substructure observables.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10303 - Particles and field physics

Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2025

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Physics Letters B

ISSN

0370-2693

e-ISSN

1873-2445

Svazek periodika

868

Číslo periodika v rámci svazku

139680

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

24

Strana od-do

—

Kód UT WoS článku

001552750200001

EID výsledku v databázi Scopus

2-s2.0-105010226419