scholarly journals Signatures of QGP at RHIC and the LHC

2021 ◽  
Vol 31 (1) ◽  
Author(s):  
T. Niida ◽  
Y. Miake
Keyword(s):  
Heavy Ion Collisions ◽  
Heavy Ion ◽  
Gluon Plasma ◽  
High Energy ◽  
Jet Quenching ◽  
Theoretical Studies ◽  
Debye Screening ◽  
Direct Photons ◽  
Ion Collisions ◽  
Experimental And Theoretical Studies

AbstractThe progress over the 30 years since the first high-energy heavy-ion collisions at the BNL-AGS and CERN-SPS has been truly remarkable. Rigorous experimental and theoretical studies have revealed a new state of the matter in heavy-ion collisions, the quark-gluon plasma (QGP). Many signatures supporting the formation of the QGP have been reported. Among them are jet quenching, the non-viscous flow, direct photons, and Debye screening effects. In this article, selected signatures of the QGP observed at RHIC and the LHC are reviewed.

scholarly journals Direct photons and dileptons via color dipoles

2007 ◽  
Vol 653 (2-4) ◽  
pp. 210-215 ◽  
Author(s):  
B.Z. Kopeliovich ◽  
A.H. Rezaeian ◽  
H.J. Pirner ◽  
Iván Schmidt
Keyword(s):  
Direct Photons

Setting the jet energy scale in the CMS calorimeter using events with direct photons

2008 ◽  
Vol 5 (5) ◽  
pp. 447-455 ◽  
Author(s):  
I. A. Golutvin ◽  
A. V. Zarubin ◽  
O. L. Kodolova ◽  
V. F. Konoplyanikov ◽  
A. L. Ul’yanov ◽  
...  
Keyword(s):  
Energy Scale ◽  
Direct Photons ◽  
Jet Energy

High-pTproduction of direct photons and jets in quantum chromodynamics

1980 ◽  
Vol 22 (7) ◽  
pp. 1609-1616 ◽  
Author(s):  
L. Cormell ◽  
J. F. Owens
Keyword(s):  
Quantum Chromodynamics ◽  
Direct Photons

Study the early stage of heavy ion collisions with direct photons

2014 ◽  
Vol 29 ◽  
pp. 1460230 ◽  
Author(s):  
Fu-Ming Liu ◽  
Sheng-Xu Liu
Keyword(s):  
Collective Motion ◽  
Early Stage ◽  
Heavy Ion ◽  
Gluon Plasma ◽  
Transverse Momentum Spectrum ◽  
Direct Photons ◽  
Ion Collisions ◽  
Phenix Collaboration ◽  
Early Beginning ◽  
Hadronic Data

Based on the modelling of the collective motion in AuAu collisions at [Formula: see text] at centrality 0-20% and 20-40% and PbPb collisions at [Formula: see text] at centrality 0-40% with a 3+1D event-averaged ideal hydrodynamics constrained with hadronic data, we study the transverse momentum spectrum and elliptic flow of direct photons and find that the recent direct photon data from both PHENIX collaboration at RHIC and ALICE collaboration at LHC favour an early beginning of collective expansion (τ0 < 0.6 fm/c) and a late formation of quark gluon plasma (τ ~ 2 fm/c).

scholarly journals Thermal and direct photons in PHENIX

2013 ◽  
Vol 422 ◽  
pp. 012020
Author(s):  
Sarah Campbell ◽  
Keyword(s):  
Direct Photons
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