Search for Quasiparticle Scattering in the Quark-Gluon Plasma with Jet Splittings in pp and Pb-Pb Collisions at √sNN=5.02 TeV
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389005%3A_____%2F25%3A00641185" target="_blank" >RIV/61389005:_____/25:00641185 - isvavai.cz</a>
Nalezeny alternativní kódy
RIV/68378271:_____/25:00641185
Výsledek na webu
<a href="https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.135.031901" target="_blank" >https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.135.031901</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1103/PhysRevLett.135.031901" target="_blank" >10.1103/PhysRevLett.135.031901</a>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
Search for Quasiparticle Scattering in the Quark-Gluon Plasma with Jet Splittings in pp and Pb-Pb Collisions at √sNN=5.02 TeV
Popis výsledku v původním jazyce
The ALICE Collaboration reports measurements of the large relative transverse momentum (k(T)) component of jet substructure in pp and Pb-Pb collisions at center-of-mass energy per nucleon pair root S-NN = 5.02 TeV. Enhancement in the yield of such large-k(T) emissions in head-on Pb-Pb collisions is predicted to arise from partonic scattering with quasiparticles of the quark-gluon plasma. The analysis utilizes charged-particle jets reconstructed by the anti-kT algorithm with resolution parameter R = 0.2 in the transverse-momentum interval 60 < p(T,ch,jet) < 80 GeV/c. The soft drop and dynamical grooming algorithms are used to identify high transverse momentum splittings in the jet shower. Comparison of measurements in Pb-Pb and pp collisions shows medium-induced narrowing, corresponding to yield suppression of high-k(T) splittings, in contrast to the expectation of yield enhancement due to quasiparticle scattering. The measurements are compared to theoretical model calculations incorporating jet modification due to jet-medium interactions ('jet quenching'), both with and without quasiparticle scattering effects. These measurements provide new insight into the underlying mechanisms and theoretical modeling of jet quenching.
Název v anglickém jazyce
Search for Quasiparticle Scattering in the Quark-Gluon Plasma with Jet Splittings in pp and Pb-Pb Collisions at √sNN=5.02 TeV
Popis výsledku anglicky
The ALICE Collaboration reports measurements of the large relative transverse momentum (k(T)) component of jet substructure in pp and Pb-Pb collisions at center-of-mass energy per nucleon pair root S-NN = 5.02 TeV. Enhancement in the yield of such large-k(T) emissions in head-on Pb-Pb collisions is predicted to arise from partonic scattering with quasiparticles of the quark-gluon plasma. The analysis utilizes charged-particle jets reconstructed by the anti-kT algorithm with resolution parameter R = 0.2 in the transverse-momentum interval 60 < p(T,ch,jet) < 80 GeV/c. The soft drop and dynamical grooming algorithms are used to identify high transverse momentum splittings in the jet shower. Comparison of measurements in Pb-Pb and pp collisions shows medium-induced narrowing, corresponding to yield suppression of high-k(T) splittings, in contrast to the expectation of yield enhancement due to quasiparticle scattering. The measurements are compared to theoretical model calculations incorporating jet modification due to jet-medium interactions ('jet quenching'), both with and without quasiparticle scattering effects. These measurements provide new insight into the underlying mechanisms and theoretical modeling of jet quenching.
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
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Ostatní
Rok uplatnění
2025
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název periodika
Physical Review Letters
ISSN
0031-9007
e-ISSN
1079-7114
Svazek periodika
135
Číslo periodika v rámci svazku
3
Stát vydavatele periodika
US - Spojené státy americké
Počet stran výsledku
17
Strana od-do
031901
Kód UT WoS článku
001552815100001
EID výsledku v databázi Scopus
2-s2.0-105011587919