Properties of jet fragmentation using charged particles measured with the ATLAS detector in pp collisions at root s=13 TeV

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F19%3A73596757" target="_blank" >RIV/61989592:15310/19:73596757 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68407700:21220/19:00335913 RIV/68407700:21340/19:00335913 RIV/68407700:21670/19:00335913 RIV/00216208:11320/19:10407663

Výsledek na webu

<a href="https://journals.aps.org/prd/pdf/10.1103/PhysRevD.100.052011" target="_blank" >https://journals.aps.org/prd/pdf/10.1103/PhysRevD.100.052011</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1103/PhysRevD.100.052011" target="_blank" >10.1103/PhysRevD.100.052011</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Properties of jet fragmentation using charged particles measured with the ATLAS detector in pp collisions at root s=13 TeV

Popis výsledku v původním jazyce

This paper presents a measurement of quantities related to the formation of jets from high-energy quarks and gluons (fragmentation). Jets with transverse momentum 100 GeV &lt; p(T) &lt; 2.5 TeV and pseudorapidity vertical bar eta vertical bar &lt; 2.1 from an integrated luminosity of 33 fb(-1) of root s = 13 TeV proton-proton collisions are reconstructed with the ATLAS detector at the Large Hadron Collider. Charged-particle tracks with p(T) &gt; 500 MeV and vertical bar eta vertical bar &lt; 2.5 are used to probe the detailed structure of the jet. The fragmentation properties of the more forward and the more central of the two leading jets from each event are studied. The data are unfolded to correct for detector resolution and acceptance effects. Comparisons with parton shower Monte Carlo generators indicate that existing models provide a reasonable description of the data across a wide range of phase space, but there are also significant differences. Furthermore, the data are interpreted in the context of quark- and gluon-initiated jets by exploiting the rapidity dependence of the jet flavor fraction. A first measurement of the charged-particle multiplicity using model-independent jet labels (topic modeling) provides a promising alternative to traditional quark and gluon extractions using input from simulation. The simulations provide a reasonable description of the quark-like data across the jet p(T) range presented in-this measurement, but the gluon-like data have systematically fewer charged particles than the simulation.

Název v anglickém jazyce

Properties of jet fragmentation using charged particles measured with the ATLAS detector in pp collisions at root s=13 TeV

Popis výsledku anglicky

This paper presents a measurement of quantities related to the formation of jets from high-energy quarks and gluons (fragmentation). Jets with transverse momentum 100 GeV &lt; p(T) &lt; 2.5 TeV and pseudorapidity vertical bar eta vertical bar &lt; 2.1 from an integrated luminosity of 33 fb(-1) of root s = 13 TeV proton-proton collisions are reconstructed with the ATLAS detector at the Large Hadron Collider. Charged-particle tracks with p(T) &gt; 500 MeV and vertical bar eta vertical bar &lt; 2.5 are used to probe the detailed structure of the jet. The fragmentation properties of the more forward and the more central of the two leading jets from each event are studied. The data are unfolded to correct for detector resolution and acceptance effects. Comparisons with parton shower Monte Carlo generators indicate that existing models provide a reasonable description of the data across a wide range of phase space, but there are also significant differences. Furthermore, the data are interpreted in the context of quark- and gluon-initiated jets by exploiting the rapidity dependence of the jet flavor fraction. A first measurement of the charged-particle multiplicity using model-independent jet labels (topic modeling) provides a promising alternative to traditional quark and gluon extractions using input from simulation. The simulations provide a reasonable description of the quark-like data across the jet p(T) range presented in-this measurement, but the gluon-like data have systematically fewer charged particles than the simulation.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10303 - Particles and field physics

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2019

Kód důvěrnosti údajů

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

Název periodika

PHYSICAL REVIEW D

ISSN

2470-0010

e-ISSN

—

Svazek periodika

100

Číslo periodika v rámci svazku

5

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

38

Strana od-do

"052011-1"-"052011-38"

Kód UT WoS článku

000486645100003

EID výsledku v databázi Scopus

2-s2.0-85072977956