Characterization of the initial state and medium properties of heavy-ion collisions at ALICE

2015 ◽  
Author(s):  
Anthony Timmins
Keyword(s):  
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 Charge-dependent flow as evidence of strong electromagnetic fields in heavy-ion collisions

2020 ◽  
Vol 35 (39) ◽  
pp. 2050324
Author(s):  
Andrea Dubla ◽  
Umut Gürsoy ◽  
Raimond Snellings
Keyword(s):  
Electromagnetic Fields ◽  
Heavy Ion Collisions ◽  
Heavy Ion ◽  
Gluon Plasma ◽  
Experimental Characterization ◽  
Ion Collisions ◽  
Current State ◽  
Theoretical Predictions ◽  
Dependent Flow

The extremely large electromagnetic fields generated in heavy-ion collisions provide access to novel observables that are expected to constrain various key transport properties of the quark-gluon plasma and could help solve one of the outstanding puzzles in QCD: the strong CP problem. In this review we present a brief overview of the theoretical and experimental characterization of these electromagnetic fields. After reviewing the current state, emphasizing one of the observables — the charge-dependent flow — we discuss the various discrepancies between the measurements and theoretical predictions. Finally, to help resolve the discrepancies, we suggest new measurements and theoretical ideas.

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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