Hybrid Color Glass Condensate and hydrodynamic description of the Relativistic Heavy Ion Collider small system scan

Abstract We analyse the azimuthal structure of two gluon correlations in the color glass condensate including those effects that result from relaxing the shockwave approximation for the target. Working in the Glasma graph approach suitable for collisions between dilute systems, we compute numerically the azimuthal distributions and show that both even and odd harmonics appear. We study their dependence on model parameters, energy of the collision, pseudorapidity and transverse momentum of the produced particles, and length of the target. While the contribution from non-eikonal corrections vanishes with increasing collision energy and becomes negligible at the energies of the Large Hadron Collider, it is found to be sizeable up to top energies at the Relativistic Heavy Ion Collider.

Download Full-text

Small System Collectivity in Relativistic Hadronic and Nuclear Collisions

Annual Review of Nuclear and Particle Science ◽

10.1146/annurev-nucl-101916-123209 ◽

2018 ◽

Vol 68 (1) ◽

pp. 211-235 ◽

Cited By ~ 58

Author(s):

James L. Nagle ◽

William A. Zajc

Keyword(s):

Large Hadron Collider ◽

Nuclear Matter ◽

Hadron Collider ◽

Heavy Ion ◽

Relativistic Heavy Ion Collider ◽

Small System ◽

Nuclear Collisions ◽

Ion Collisions ◽

Bulk Motion ◽

Inviscid Hydrodynamics

The bulk motion of nuclear matter at the ultrahigh temperatures created in heavy ion collisions at the Relativistic Heavy Ion Collider and the Large Hadron Collider is well described in terms of nearly inviscid hydrodynamics, thereby establishing this system of quarks and gluons as the most perfect fluid in nature. A revolution in the field is under way, spearheaded by the discovery of similar collective, fluid-like phenomena in much smaller systems including p+ p, p+ A, d+Au, and3He+Au collisions. We review these exciting new observations and their profound implications for hydrodynamic descriptions of small and/or out-of-equilibrium systems.

Download Full-text

Analytic calculation of the energy-momentum tensor in heavy ion collisions from color glass condensate

Physical Review C ◽

10.1103/physrevc.94.024908 ◽

2016 ◽

Vol 94 (2) ◽

Cited By ~ 5

Author(s):

Ming Li ◽

Joseph I. Kapusta

Keyword(s):

Heavy Ion Collisions ◽

Energy Momentum Tensor ◽

Heavy Ion ◽

Momentum Tensor ◽

Analytic Calculation ◽

Color Glass ◽

Color Glass Condensate ◽

Ion Collisions

Download Full-text

Initial state and thermalization in the Color Glass Condensate framework

International Journal of Modern Physics E ◽

10.1142/s0218301315300088 ◽

2015 ◽

Vol 24 (10) ◽

pp. 1530008 ◽

Cited By ~ 10

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.

Download Full-text

Diffractive vector meson production in ultraperipheral heavy ion collisions from the Color Glass Condensate

10.22323/1.203.0069 ◽

2014 ◽

Author(s):

Heikki Mäntysaari ◽

Tuomas Lappi

Keyword(s):

Vector Meson ◽

Heavy Ion Collisions ◽

Meson Production ◽

Heavy Ion ◽

Color Glass ◽

Color Glass Condensate ◽

Vector Meson Production ◽

Ion Collisions

Download Full-text

Comparing Two Different Initial Conditions AAMQS and Quartic Action in Illustrating the Effect of Valence Color Charges in High-EnergypACollisions at Forward Rapidity

Advances in High Energy Physics ◽

10.1155/2013/723484 ◽

2013 ◽

Vol 2013 ◽

pp. 1-14

Author(s):

Ye-Yin Zhao ◽

Ya-Hui Chen ◽

Ya-Qin Gao ◽

Fu-Hu Liu

Keyword(s):

Particle Production ◽

Initial Conditions ◽

Hadron Collider ◽

Heavy Ion ◽

High Energy ◽

Color Glass ◽

Forward Rapidity ◽

Relativistic Heavy Ion Collider ◽

Proton Proton ◽

Running Coupling

The inclusive particle productions in proton-proton (pp) and deuton-gold (d+Au) collisions at forward rapidity at the Relativistic Heavy Ion Collider (RHIC) energy are studied in the framework of the color glass condensate (CGC) theory by using two different initial conditions: AAMQS (Albacete-Armesto-Milhano-Quiroga-Salgado) and quartic action. Then, the results obtained by the two different initial conditions in illustrating the effect of valence color charges in high-energy proton-nucleus (pA) collisions at forward energy are compared. Meanwhile, the inclusive particle productions inpAcollisions at forward rapidity at the Large Hadron Collider (LHC) energies are predicted. The main dynamical input in our calculations is the use of solutions of the running coupling Balitsky-Kovchegov equation tested in electron-proton (ep) collision data. Particle production is computed via the hybrid formalisms to obtain spectra and yields. These baseline predictions are useful for testing the current understanding of the dynamics of very strong color fields against the upcoming LHC data.

Download Full-text

COLOR GLASS CONDENSATE AND GLASMA

International Journal of Modern Physics A ◽

10.1142/s0217751x13300019 ◽

2013 ◽

Vol 28 (01) ◽

pp. 1330001 ◽

Cited By ~ 65

Author(s):

FRANÇOIS GELIS

Keyword(s):

Quark Gluon Plasma ◽

Heavy Ion ◽

Gluon Plasma ◽

High Energy ◽

Effective Theory ◽

Color Glass ◽

Color Glass Condensate ◽

Saturation Regime ◽

Initial State ◽

Ion Collisions

We review the color glass condensate effective theory, that describes the gluon content of a high energy hadron or nucleus, in the saturation regime. The emphasis is put on applications to high energy heavy ion collisions. After describing initial state factorization, we discuss the glasma phase, that precedes the formation of an equilibrated quark–gluon plasma. We end this review with a presentation of recent developments in the study of the isotropization and thermalization of the quark–gluon plasma.

Download Full-text