scholarly journals A systematic study of the initial state in heavy ion collisions based on the quark participant assumption

2016 ◽  
Vol 52 (3) ◽  
Author(s):  
Liang Zheng ◽  
Zhongbao Yin
Keyword(s):  
Systematic Study ◽  
Heavy Ion Collisions ◽  
Heavy Ion ◽  
Initial State ◽  
Ion Collisions

scholarly journals ηQ Meson Photoproduction in Ultrarelativistic Heavy Ion Collisions

2017 ◽  
Vol 2017 ◽  
pp. 1-7 ◽  
Author(s):  
Gong-Ming Yu ◽  
Gao-Gao Zhao ◽  
Zhen Bai ◽  
Yan-Bing Cai ◽  
Hai-Tao Yang ◽  
...  
Keyword(s):  
Heavy Ion Collisions ◽  
Hadron Collider ◽  
Heavy Ion ◽  
Relativistic Heavy Ion Collisions ◽  
Heavy Quarkonium ◽  
Color Singlet ◽  
Initial State ◽  
Color Octet ◽  
Ion Collisions ◽  
The Matrix

The transverse momentum distributions for inclusive ηc,b meson described by gluon-gluon interactions from photoproduction processes in relativistic heavy ion collisions are calculated. We considered the color-singlet (CS) and color-octet (CO) components within the framework of Nonrelativistic Quantum Chromodynamics (NRQCD) in the production of heavy quarkonium. The phenomenological values of the matrix elements for the color-singlet and color-octet components give the main contribution to the production of heavy quarkonium from the gluon-gluon interaction caused by the emission of additional gluon in the initial state. The numerical results indicate that the contribution of photoproduction processes cannot be negligible for midrapidity in p-p and Pb-Pb collisions at the Large Hadron Collider (LHC) energies.

scholarly journals Initial state and thermalization in the Color Glass Condensate framework

2015 ◽  
Vol 24 (10) ◽  
pp. 1530008 ◽  
Author(s):  
François Gelis
Keyword(s):  
Wave Function ◽  
Heavy Ion Collisions ◽  
Heavy Ion ◽  
High Energy ◽  
Color Glass ◽  
Color Glass Condensate ◽  
Nuclear Wave Function ◽  
Initial State ◽  
Early Stages ◽  
Ion Collisions

In this review, I present the description of the early stages of heavy ion collisions at high energy in the Color Glass Condensate framework, from the pre-collision high energy nuclear wave function to the point where hydrodynamics may start becoming applicable.

scholarly journals Quantifying Initial State Fluctuations in Heavy Ion Collisions

2013 ◽  
Vol 6 (3) ◽  
pp. 797 ◽  
Author(s):  
H. Petersen ◽  
C.E. Coleman-Smith ◽  
R.L. Wolpert
Keyword(s):  
Heavy Ion Collisions ◽  
Heavy Ion ◽  
Initial State ◽  
Ion Collisions
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