Energy scale and resolution for anti-kt jets with radius parameters R = SQUARE ROOT 0.2 and 0.6 measured in proton-proton collisions at SQUARE ROOTs = 13 TeV with the ATLAS detector

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F25%3A10512613" target="_blank" >RIV/00216208:11320/25:10512613 - isvavai.cz</a>

Výsledek na webu

<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=dhn.05kZkN" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=dhn.05kZkN</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1140/epjc/s10052-025-14226-6" target="_blank" >10.1140/epjc/s10052-025-14226-6</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Energy scale and resolution for anti-kt jets with radius parameters R = SQUARE ROOT 0.2 and 0.6 measured in proton-proton collisions at SQUARE ROOTs = 13 TeV with the ATLAS detector

Popis výsledku v původním jazyce

Jets with different radius parameters R are an important tool for probing quantum chromodynamics processesat different angular scales. Jetswith small R = 0.2 areinstrumental in measurements of the substructure of large-R jets resulting from collimated hadronic decays of energeticW, Z, and Higgs bosons, top quarks, and of potentialnew resonances. This paper presents measurements of theenergy scale, resolution, and associated uncertainties of jetswith radius parameters R = 0.2 and 0.6, obtained using theATLAS detector. The results are based on 37 fb-1 of proton-proton collision data from the Large Hadron Collider at acentre-of-mass energy ofSQUARE ROOTs = 13TeV.Anewin situ methodfor measuring jet energy scale differences between data andMonte Carlo simulations is presented. The systematic uncertaintiesin the jet energy scale for central jets (|η| &lt; 1.2)typically vary from 1% to about 5% as a function of |η| atvery low transverse momentum, pT, of around 20 GeV forboth R = 0.2 and 0.6 jets. The relative energy resolutionranges from (35 +- 6)% at pT = 20 GeV to (6 +- 0.5)% atpT = 300 GeV for central R = 0.2 jets, and is found to beslightly worse for R = 0.6 jets. Finally, the effect of close-byhadronic activity on the jet energy scale is investigated andis found to be well modelled by the ATLAS Monte Carlo simulations.

Název v anglickém jazyce

Energy scale and resolution for anti-kt jets with radius parameters R = SQUARE ROOT 0.2 and 0.6 measured in proton-proton collisions at SQUARE ROOTs = 13 TeV with the ATLAS detector

Popis výsledku anglicky

Jets with different radius parameters R are an important tool for probing quantum chromodynamics processesat different angular scales. Jetswith small R = 0.2 areinstrumental in measurements of the substructure of large-R jets resulting from collimated hadronic decays of energeticW, Z, and Higgs bosons, top quarks, and of potentialnew resonances. This paper presents measurements of theenergy scale, resolution, and associated uncertainties of jetswith radius parameters R = 0.2 and 0.6, obtained using theATLAS detector. The results are based on 37 fb-1 of proton-proton collision data from the Large Hadron Collider at acentre-of-mass energy ofSQUARE ROOTs = 13TeV.Anewin situ methodfor measuring jet energy scale differences between data andMonte Carlo simulations is presented. The systematic uncertaintiesin the jet energy scale for central jets (|η| &lt; 1.2)typically vary from 1% to about 5% as a function of |η| atvery low transverse momentum, pT, of around 20 GeV forboth R = 0.2 and 0.6 jets. The relative energy resolutionranges from (35 +- 6)% at pT = 20 GeV to (6 +- 0.5)% atpT = 300 GeV for central R = 0.2 jets, and is found to beslightly worse for R = 0.6 jets. Finally, the effect of close-byhadronic activity on the jet energy scale is investigated andis found to be well modelled by the ATLAS Monte Carlo simulations.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10300 - Physical sciences

Projekt

<a href="/cs/project/EH22_008%2F0004632" target="_blank" >EH22_008/0004632: Výzkum základních stavebních kamenů hmoty s využitím špičkových technologií</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2025

Kód důvěrnosti údajů

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

Název periodika

European Physical Journal C

ISSN

1434-6044

e-ISSN

1434-6052

Svazek periodika

85

Číslo periodika v rámci svazku

2025

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

46

Strana od-do

791

Kód UT WoS článku

001679178400001

EID výsledku v databázi Scopus

2-s2.0-105014103351