Measurement of suppression of large-radius jets and its dependence on substructure in Pb+Pb collisions at √sNN=5.02 TeV with the ATLAS detector

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F23%3A00581796" target="_blank" >RIV/68378271:_____/23:00581796 - isvavai.cz</a>

Výsledek na webu

<a href="https://hdl.handle.net/11104/0349945" target="_blank" >https://hdl.handle.net/11104/0349945</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1103/PhysRevLett.131.172301" target="_blank" >10.1103/PhysRevLett.131.172301</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Measurement of suppression of large-radius jets and its dependence on substructure in Pb+Pb collisions at √sNN=5.02 TeV with the ATLAS detector

Popis výsledku v původním jazyce

This letter presents a measurement of the nuclear modification factor of large-radius jets in sNN=5.02  TeV Pb+Pb collisions by the ATLAS experiment. The measurement is performed using 1.72  nb-1 and 257  pb-1 of Pb+Pb and pp data, respectively. The large-radius jets are reconstructed with the anti-kt algorithm using a radius parameter of R=1.0, by reclustering anti-kt R=0.2 jets, and are measured over the transverse momentum (pT) kinematic range of 158<pT<1000  GeV and absolute pseudorapidity |y|<2.0. The large-radius jet constituents are further reclustered using the kt algorithm in order to obtain the splitting parameters, d12 and ΔR12, which characterize the transverse momentum scale and angular separation for the hardest splitting in the jet, respectively. The nuclear modification factor, RAA, obtained by comparing the Pb+Pb jet yields to those in pp collisions, is measured as a function of jet transverse momentum (pT) and d12 or ΔR12.n

Název v anglickém jazyce

Measurement of suppression of large-radius jets and its dependence on substructure in Pb+Pb collisions at √sNN=5.02 TeV with the ATLAS detector

Popis výsledku anglicky

This letter presents a measurement of the nuclear modification factor of large-radius jets in sNN=5.02  TeV Pb+Pb collisions by the ATLAS experiment. The measurement is performed using 1.72  nb-1 and 257  pb-1 of Pb+Pb and pp data, respectively. The large-radius jets are reconstructed with the anti-kt algorithm using a radius parameter of R=1.0, by reclustering anti-kt R=0.2 jets, and are measured over the transverse momentum (pT) kinematic range of 158<pT<1000  GeV and absolute pseudorapidity |y|<2.0. The large-radius jet constituents are further reclustered using the kt algorithm in order to obtain the splitting parameters, d12 and ΔR12, which characterize the transverse momentum scale and angular separation for the hardest splitting in the jet, respectively. The nuclear modification factor, RAA, obtained by comparing the Pb+Pb jet yields to those in pp collisions, is measured as a function of jet transverse momentum (pT) and d12 or ΔR12.n

Druh

J_SC - Článek v periodiku v databázi SCOPUS

CEP obor

—

OECD FORD obor

10303 - Particles and field physics

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2023

Kód důvěrnosti údajů

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

Název periodika

Physical Review Letters

ISSN

0031-9007

e-ISSN

1079-7114

Svazek periodika

131

Číslo periodika v rámci svazku

17

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

22

Strana od-do

172301

Kód UT WoS článku

—

EID výsledku v databázi Scopus

2-s2.0-85176743787