Evolution of Fluctuations in the Initial State of Heavy-Ion Collisions from RHIC to LHC

Giacalone, Giuliano; Gelis, F.; Guerrero-Rodríguez, Pablo; Luzum, Matthew; Marquet, Cyrille; Ollitrault, Jean-Yves

doi:10.1007/978-3-030-53448-6_71

Cited by 3 publications

(3 citation statements)

References 13 publications

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“…There, the developed IP-Glasma model is first used to determine the initial state after the collision, and to solve the early time evolution (see also Refs. [116,117] for a recent develompent of the fluctuating initial condition for the hydrodynamical evolution from the CGC framework). When the system is close to the local thermal equilibrium, hydrodynamical evolution is applied using the relativistic viscous hydrodynamic simulation MUSIC [118,119].…”

Section: B Nucleon Substructure and Flow In Heavy Ion Collisionsmentioning

confidence: 99%

Review of proton and nuclear shape fluctuations at high energy

Mäntysaari¹

2020

Rep. Prog. Phys.

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Section: B Nucleon Substructure and Flow In Heavy Ion Collisionsmentioning

confidence: 99%

Review of proton and nuclear shape fluctuations at high energy

Mäntysaari¹

2020

Rep. Prog. Phys.

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“…The choice we make is to assume that the coupling g appearing as an overall coefficient (but not the coupling in the exponent) in Eqs. (22) and (23) runs with the distance r according to:…”

Section: A the MV Modelmentioning

confidence: 99%

“…In the case of the energy density, this calculation has found a practical application in the construction of a model of initial conditions for HICs that was used in the description of eccentricity fluctuations in Refs. [20][21][22][23]. Similarly, it was proposed that the two-point function of the divergence of the Chern-Simons current might be applied in the modeling of initial conditions of anomalous hydrodynamical simulations [18].…”

Section: Introductionmentioning

confidence: 99%

Topological charge fluctuations in the Glasma

Guerrero-Rodríguez

2019

J. High Energ. Phys.

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The early-time evolution of the system generated in ultra-relativistic heavy ion collisions is dominated by the presence of strong color fields known as Glasma fields. These can be described following the classical approach embodied in the Color Glass Condensate effective theory, which approximates QCD in the high gluon density regime. In this framework we perform an analytical first-principles calculation of the two-point correlator of the divergence of the Chern-Simons current at proper time τ = 0 + , which characterizes the early fluctuations of axial charge density in the plane transverse to the collision axis. This object plays a crucial role in the description of anomalous transport phenomena such as the Chiral Magnetic Effect. We compare our results to those obtained under the Glasma Graph approximation, which assumes gluon field correlators to obey Gaussian statistics. While this approach proves to be equivalent to the exact calculation in the limit of short transverse separations, important differences arise at larger distances, where our expression displays a remarkably slower fall-off than the Glasma Graph result (1/r 4 vs. 1/r 8 power-law decay). This discrepancy emerges from the non-linear dynamics mapping the Gaussianly-distributed color source densities onto the Glasma fields, encoded in the classical Yang-Mills equations. Our results support the conclusions reached in a previous work, where we found indications that the color screening of correlations in the transverse plane occurs at relatively large distances.

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Parton evolution time-dependent transverse shape asymmetry in peripheral Pb–Pb and p–Pb collisions at 5.02TeV

Wei¹

2021

Int. J. Mod. Phys. E

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In this paper, we use a multi-phase transport model to simulate the parton evolution time-dependent transverse asymmetry in peripheral Pb–Pb ([Formula: see text]–15[Formula: see text]fm) and p–Pb ([Formula: see text]–1[Formula: see text]fm) collisions at [Formula: see text][Formula: see text]TeV, respectively. The simulated results showed that the initial spatial asymmetry depends on the collision system, while both the initial momentum asymmetry and final momentum asymmetry are independent on the collision system. It is also shown that the final momentum asymmetry is similar to the initial momentum asymmetry. Furthermore, the averaged transverse shape asymmetry, which includes the initial spatial asymmetry, the initial momentum asymmetry, and the final momentum asymmetry, is significantly dependent on the transverse momentum and particle species identity (PID). The PID scales ordering transverse asymmetry indicated that it provides a possible observation for studying the fluctuating droplet properties of quark–gluon plasma, which may produce in heavy-ion collisions.

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Evolution of Fluctuations in the Initial State of Heavy-Ion Collisions from RHIC to LHC

Cited by 3 publications

References 13 publications

Review of proton and nuclear shape fluctuations at high energy

Review of proton and nuclear shape fluctuations at high energy

Topological charge fluctuations in the Glasma

Parton evolution time-dependent transverse shape asymmetry in peripheral Pb–Pb and p–Pb collisions at 5.02TeV

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