Jet fragmentation transverse momentum measurements from di-hadron correlations in root s7 TeV pp and root sNN=5.02 TeV p-Pb collisions
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389005%3A_____%2F19%3A00504075" target="_blank" >RIV/61389005:_____/19:00504075 - isvavai.cz</a>
Nalezeny alternativní kódy
RIV/68378271:_____/19:00504075 RIV/68407700:21340/19:00333318
Výsledek na webu
<a href="https://doi.org/10.1007/JHEP03(2019)169" target="_blank" >https://doi.org/10.1007/JHEP03(2019)169</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/JHEP03(2019)169" target="_blank" >10.1007/JHEP03(2019)169</a>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
Jet fragmentation transverse momentum measurements from di-hadron correlations in root s7 TeV pp and root sNN=5.02 TeV p-Pb collisions
Popis výsledku v původním jazyce
The transverse structure of jets was studied via jet fragmentation transverse momentum (j(T)) distributions, obtained using two-particle correlations in proton-proton and proton-lead collisions, measured with the ALICE experiment at the LHC. The highest transverse momentum particle in each event is used as the trigger particle and the region 3 < p(Tt) < 15GeV/c is explored in this study. The measured distributions show a clear narrow Gaussian component and a wide non-Gaussian one. Based on Pythia simulations, the narrow component can be related to non-perturbative hadronization and the wide component to quantum chromodynamical splitting. The width of the narrow component shows a weak dependence on the transverse momentum of the trigger particle, in agreement with the expectation of universality of the hadronization process. On the other hand, the width of the wide component shows a rising trend suggesting increased branching for higher transverse momentum. The results obtained in pp collisions at root s TeV and in p-Pb collisions at root sNN=5.02 TeV are compatible within uncertainties and hence no significant cold nuclear matter effects are observed. The results are compared to previous measurements from CCOR and PHENIX as well as to Pythia 8 and Herwig 7 simulations.
Název v anglickém jazyce
Jet fragmentation transverse momentum measurements from di-hadron correlations in root s7 TeV pp and root sNN=5.02 TeV p-Pb collisions
Popis výsledku anglicky
The transverse structure of jets was studied via jet fragmentation transverse momentum (j(T)) distributions, obtained using two-particle correlations in proton-proton and proton-lead collisions, measured with the ALICE experiment at the LHC. The highest transverse momentum particle in each event is used as the trigger particle and the region 3 < p(Tt) < 15GeV/c is explored in this study. The measured distributions show a clear narrow Gaussian component and a wide non-Gaussian one. Based on Pythia simulations, the narrow component can be related to non-perturbative hadronization and the wide component to quantum chromodynamical splitting. The width of the narrow component shows a weak dependence on the transverse momentum of the trigger particle, in agreement with the expectation of universality of the hadronization process. On the other hand, the width of the wide component shows a rising trend suggesting increased branching for higher transverse momentum. The results obtained in pp collisions at root s TeV and in p-Pb collisions at root sNN=5.02 TeV are compatible within uncertainties and hence no significant cold nuclear matter effects are observed. The results are compared to previous measurements from CCOR and PHENIX as well as to Pythia 8 and Herwig 7 simulations.
Klasifikace
Druh
J<sub>imp</sub> - Článek v periodiku v databázi Web of Science
CEP obor
—
OECD FORD obor
10304 - Nuclear physics
Návaznosti výsledku
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)
Ostatní
Rok uplatnění
2019
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název periodika
Journal of High Energy Physics
ISSN
1029-8479
e-ISSN
—
Svazek periodika
2019
Číslo periodika v rámci svazku
3
Stát vydavatele periodika
US - Spojené státy americké
Počet stran výsledku
24
Strana od-do
169
Kód UT WoS článku
000462974300001
EID výsledku v databázi Scopus
2-s2.0-85063688537