Semi-inclusive direct photon plus jet and π0+jet correlations measured in p plus p and central Au plus Au collisions at root sNN=200 GeV
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F25%3A00388760" target="_blank" >RIV/68407700:21340/25:00388760 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1103/8b8y-98yh" target="_blank" >https://doi.org/10.1103/8b8y-98yh</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1103/8b8y-98yh" target="_blank" >10.1103/8b8y-98yh</a>
Alternative languages
Result language
angličtina
Original language name
Semi-inclusive direct photon plus jet and π0+jet correlations measured in p plus p and central Au plus Au collisions at root sNN=200 GeV
Original language description
The Solenoidal Tracker at RHIC (STAR) experiment at the Relativistic Heavy Ion Collider reports new measurements of jet quenching based on the semi-inclusive distribution of charged-particle jets recoiling from direct photon (gamma(dir)) and neutral pion (pi(0)) triggers in pp and central Au + Au collisions at root s(NN) = 200 GeV for triggers in the range 9 < E-T(trig) < 20 GeV. The datasets have integrated luminosities of 3.9 nb(-1) for Au + Au and 23 pb(-1) for pp collisions. Jets are reconstructed using the anti-k(T) algorithm with resolution parameters R = 0.2 and 0.5. The large uncorrelated jet background in central Au + Au collisions is corrected using a mixed-event approach, which enables precise charged-particle jet measurements at low transverse momentum p(T,jet)(ch) and large R. Recoil-jet distributions are reported in the range p(T,jet)(ch) < 25 GeV/c. Comparison of the distributions measured in pp and Au + Au collisions reveals strong medium-induced jet yield suppression for R = 0.2 with markedly less suppression for R = 0.5. Comparison is also made to theoretical models incorporating jet quenching. These data provide new insight into the mechanisms underlying jet quenching and the angular dependence of medium-induced jet-energy transport and provide new constraints on modeling such effects.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10303 - Particles and field physics
Result continuities
Project
<a href="/en/project/LM2023034" target="_blank" >LM2023034: Brookhaven National Laboratory - Participation of the Czech Republic</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
PHYSICAL REVIEW C
ISSN
2469-9985
e-ISSN
2469-9993
Volume of the periodical
111
Issue of the periodical within the volume
6
Country of publishing house
US - UNITED STATES
Number of pages
30
Pages from-to
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UT code for WoS article
001519232500001
EID of the result in the Scopus database
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