Measurement of two-particle correlations with respect to second- and third-order event planes in Au+Au collisions at √sNN = 200 GeV
PHENIX Collaboration. (2019). Measurement of two-particle correlations with respect to second- and third-order event planes in Au+Au collisions at √sNN = 200 GeV. Physical Review C, 99(5), Article 054903. https://doi.org/10.1103/PhysRevC.99.054903
Published in
Physical Review CAuthors
Date
2019Copyright
© The Authors, 2019.
We present measurements of azimuthal correlations of charged hadron pairs in √sNN = 200 GeV Au + Au
collisions for the trigger and associated particle transverse-momentum ranges of 1 < pt
T < 10 GeV/c and 0.5 <
pa
T < 10 GeV/c. After subtraction of an underlying event using a model that includes higher-order azimuthal
anisotropy v2, v3, and v4, the away-side yield of the highest trigger-pT (pt
T > 4 GeV/c) correlations is suppressed
compared with that of correlations measured in p + p collisions. At the lowest associated particle pT (0.5 < pa
T <
1 GeV/c), the away-side shape and yield are modified relative to those in p + p collisions. These observations are
consistent with the scenario of radiative-jet energy loss. For the low-pT trigger correlations (2 < pt
T < 4 GeV/c),
a finite away-side yield exists and we explore the dependence of the shape of the away-side within the context
of an underlying-event model. Correlations are also studied differentially versus event-plane angle 2 and 3.
The angular correlations show an asymmetry when selecting the sign of the difference between the triggerparticle azimuthal angle and the 2 event plane. This asymmetry and the measured suppression of the pair yield
out-of-plane is consistent with a path-length-dependent energy loss. No 3 dependence can be resolved within
experimental uncertainties.
...


Publisher
American Physical SocietyISSN Search the Publication Forum
2469-9985Publication in research information system
https://converis.jyu.fi/converis/portal/detail/Publication/30885897
Metadata
Show full item recordCollections
License
Related items
Showing items with similar title or keywords.
-
Forward-central two-particle correlations in p–Pb collisions at √sNN = 5.02 TeV
ALICE Collaboration (Elsevier B.V., 2016)Two-particle angular correlations between trigger particles in the forward pseudorapidity range (2.5 < |η| < 4.0) and associated particles in the central range (|η| < 1.0) are measured with the ALICE detector in p–Pb ... -
Jet shape modification in Pb-Pb collisions at √S[sub]N[sub]N= 2.76 TeV using two-particle correlations
Vargyas, Márton (University of Jyväskylä, 2018)This thesis focuses on two separate topics. The first topic concerns the upgrade of the Time Projection Chamber (TPC) detector of the ALICE experiment. The upgrade will take place during the second Long Shutdown (2019-2020). ... -
Multiplicity dependence of jet-like two-particle correlation structures in p–Pb collisions at √sNN =5.02 TeV
ALICE Collaboration (Elsevier BV * North-Holland, 2015)Two-particle angular correlations between unidentified charged trigger and associated particles are measured by the ALICE detector in p–Pb collisions at a nucleon–nucleon centre-of-mass energy of 5.02 TeV. The ... -
Two-particle differential transverse momentum and number density correlations in p-Pb collisions at 5.02 TeV and Pb-Pb collisions at 2.76 TeV at the CERN Large Hadron Collider
ALICE Collaboration (American Physical Society, 2019)We present measurements of two-particle differential number correlation functions R2 and transverse momentum correlation functions P2, obtained from p-Pb collisions at 5.02 TeV and Pb-Pb collisions at 2.76 TeV. The results ... -
Longitudinal and azimuthal evolution of two-particle transverse momentum correlations in Pb–Pb collisions at √sNN = 2.76 TeV
ALICE Collaboration (Elsevier, 2020)This paper presents the first measurements of the charge independent (CI) and charge dependent (CD) two-particle transverse momentum correlators G2 CI and G2 CD in Pb–Pb collisions at sNN=2.76TeV by the ALICE collaboration. ...