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

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F25%3A00644541" target="_blank" >RIV/68378271:_____/25:00644541 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68407700:21220/25:00389019 RIV/68407700:21240/25:00389019 RIV/68407700:21340/25:00389019 RIV/68407700:21670/25:00389019 RIV/61989592:15310/25:73634935

Výsledek na webu

<a href="https://hdl.handle.net/11104/0374423" target="_blank" >https://hdl.handle.net/11104/0374423</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=0.2 and 0.6 measured in proton-proton collisions at √s=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 processes at different angular scales. Jets with small R=0.2 are instrumental in measurements of the substructure of large-R jets resulting from collimated hadronic decays of energetic W, Z, and Higgs bosons, top quarks, and of potential new resonances. This paper presents measurements of the energy scale, resolution, and associated uncertainties of jets with radius parameters R=0.2 and 0.6, obtained using the ATLAS detector. The results are based on 37 fb−137 fb−1 of proton–proton collision data from the Large Hadron Collider at a centre-of-mass energy of √s ​=13 TeV. A new in situ method for measuring jet energy scale differences between data and Monte Carlo simulations is presented. The systematic uncertainties in the jet energy scale for central jets (∣η∣<1.2) typically vary from 1% to about 5% as a function of ∣η∣∣η∣ at very low transverse momentum, pT​, of around 20 GeV for both R=0.2 and 0.6 jets. The relative energy resolution ranges from (35±6)% at pT=20 GeV to (6±0.5)% at pT​=300 GeV for central R=0.2 jets, and is found to be slightly worse for R=0.6 jets. Finally, the effect of close-by hadronic activity on the jet energy scale is investigated and is 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=0.2 and 0.6 measured in proton-proton collisions at √s=13 TeV with the ATLAS detector

Popis výsledku anglicky

Jets with different radius parameters R are an important tool for probing quantum chromodynamics processes at different angular scales. Jets with small R=0.2 are instrumental in measurements of the substructure of large-R jets resulting from collimated hadronic decays of energetic W, Z, and Higgs bosons, top quarks, and of potential new resonances. This paper presents measurements of the energy scale, resolution, and associated uncertainties of jets with radius parameters R=0.2 and 0.6, obtained using the ATLAS detector. The results are based on 37 fb−137 fb−1 of proton–proton collision data from the Large Hadron Collider at a centre-of-mass energy of √s ​=13 TeV. A new in situ method for measuring jet energy scale differences between data and Monte Carlo simulations is presented. The systematic uncertainties in the jet energy scale for central jets (∣η∣<1.2) typically vary from 1% to about 5% as a function of ∣η∣∣η∣ at very low transverse momentum, pT​, of around 20 GeV for both R=0.2 and 0.6 jets. The relative energy resolution ranges from (35±6)% at pT=20 GeV to (6±0.5)% at pT​=300 GeV for central R=0.2 jets, and is found to be slightly worse for R=0.6 jets. Finally, the effect of close-by hadronic activity on the jet energy scale is investigated and is 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

10303 - Particles and field physics

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

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

7

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