scholarly journals PHENIX measurement of direct photon-triggered two-particle correlations in heavy ion collisions and its implication of the medium induced energy loss.

2019 ◽  
Author(s):  
Alexandre Lebedev ◽  
Keyword(s):  
Energy Loss ◽  
Heavy Ion Collisions ◽  
Heavy Ion ◽  
Direct Photon ◽  
Particle Correlations ◽  
Ion Collisions

scholarly journals Parton energy loss in heavy-ion collisions via direct-photon and charged-particle azimuthal correlations

2010 ◽  
Vol 82 (3) ◽  
Author(s):  
B. I. Abelev ◽  
M. M. Aggarwal ◽  
Z. Ahammed ◽  
A. V. Alakhverdyants ◽  
B. D. Anderson ◽  
...  
Keyword(s):  
Charged Particle ◽  
Energy Loss ◽  
Heavy Ion Collisions ◽  
Heavy Ion ◽  
Direct Photon ◽  
Parton Energy Loss ◽  
Azimuthal Correlations ◽  
Ion Collisions

Preequilibrium particles and mean-field effects from particle-particle correlations in heavy-ion collisions

1990 ◽  
Vol 514 (3) ◽  
pp. 564-588 ◽  
Author(s):  
D. Ardouin ◽  
Z. Basrak ◽  
P. Schuck ◽  
A. Péghaire ◽  
F. Saint-Laurent ◽  
...  
Keyword(s):  
Heavy Ion Collisions ◽  
Mean Field ◽  
Heavy Ion ◽  
Particle Correlations ◽  
Field Effects ◽  
Ion Collisions

scholarly journals The global geometrical property of jet events in high-energy nuclear collisions

2020 ◽  
Vol 80 (9) ◽  
Author(s):  
Shi-Yong Chen ◽  
Wei Dai ◽  
Shan-Liang Zhang ◽  
Qing Zhang ◽  
Ben-Wei Zhang
Keyword(s):  
Energy Loss ◽  
Heavy Ion Collisions ◽  
Heavy Ion ◽  
High Energy ◽  
Jet Quenching ◽  
Relativistic Heavy Ion Collisions ◽  
Parton Energy Loss ◽  
Boltzmann Transport ◽  
Ion Collisions ◽  
Medium Modifications

AbstractWe present the first theoretical study of medium modifications of the global geometrical pattern, i.e., transverse sphericity ($$S_{\perp }$$ S ⊥ ) distribution of jet events with parton energy loss in relativistic heavy-ion collisions. In our investigation, POWHEG + PYTHIA is employed to make an accurate description of transverse sphericity in the p + p baseline, which combines the next-to-leading order (NLO) pQCD calculations with the matched parton shower (PS). The Linear Boltzmann Transport (LBT) model of the parton energy loss is implemented to simulate the in-medium evolution of jets. We calculate the event normalized transverse sphericity distribution in central Pb + Pb collisions at the LHC, and give its medium modifications. An enhancement of transverse sphericity distribution at small $$S_{\perp }$$ S ⊥ region but a suppression at large $$S_{\perp }$$ S ⊥ region are observed in A + A collisions as compared to their p + p references, which indicates that in overall the geometry of jet events in Pb + Pb becomes more pencil-like. We demonstrate that for events with 2 jets in the final-state of heavy-ion collisions, the jet quenching makes the geometry more sphere-like with medium-induced gluon radiation. However, for events with $$\ge 3$$ ≥ 3 jets, parton energy loss in the QCD medium leads to the events more pencil-like due to jet number reduction, where less energetic jets may lose their energies and then fall off the jet selection kinematic cut. These two effects offset each other and in the end result in more jetty events in heavy-ion collisions relative to that in p + p.

scholarly journals Probing the evolution of heavy-ion collisions using direct photon interferometry

2020 ◽  
Vol 102 (2) ◽  
Author(s):  
Oscar Garcia-Montero ◽  
Nicole Löher ◽  
Aleksas Mazeliauskas ◽  
Jürgen Berges ◽  
Klaus Reygers
Keyword(s):  
Heavy Ion Collisions ◽  
Heavy Ion ◽  
Direct Photon ◽  
Ion Collisions
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