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

Result code in 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>

Result on the web

<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>

Result language

angličtina

Original language name

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

Original language description

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.

Czech name

—

Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

10300 - Physical sciences

Project

<a href="/en/project/EH22_008%2F0004632" target="_blank" >EH22_008/0004632: Fundamental constituents of matter through frontier technologies</a><br>

Continuities

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

Publication year

2025

Confidentiality

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

Name of the periodical

European Physical Journal C

ISSN

1434-6044

e-ISSN

1434-6052

Volume of the periodical

85

Issue of the periodical within the volume

2025

Country of publishing house

DE - GERMANY

Number of pages

46

Pages from-to

791

UT code for WoS article

001679178400001

EID of the result in the Scopus database

2-s2.0-105014103351