scholarly journals Extension of the Bjorken energy density formula of the initial state for relativistic heavy ion collisions

2018 ◽  
Vol 98 (3) ◽  
Author(s):  
Zi-Wei Lin
Keyword(s):  
Energy Density ◽  
Heavy Ion Collisions ◽  
Heavy Ion ◽  
Relativistic Heavy Ion Collisions ◽  
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 Excitation function of energy density and partonic degrees of freedom in relativistic heavy ion collisions

1998 ◽  
Vol 442 (1-4) ◽  
pp. 443-448 ◽  
Author(s):  
H. Weber ◽  
C. Ernst ◽  
M. Bleicher ◽  
L. Bravina ◽  
H. Stöcker ◽  
...  
Keyword(s):  
Energy Density ◽  
Excitation Function ◽  
Heavy Ion Collisions ◽  
Degrees Of Freedom ◽  
Heavy Ion ◽  
Relativistic Heavy Ion Collisions ◽  
Ion Collisions
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