<i>Introduction to Relativistic Heavy Ion Collisions</i>

Csernai, Lazlo P.; Trueman, T. L.; Bond, Peter

doi:10.1063/1.2807950

Cited by 151 publications

(228 citation statements)

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“…The points of this burning front are not in causal connection, thus no mechanical instabilities can develop due to their interaction. The burning (hadronization) profile for two colliding energies, 5.5 and 39 TeV/nucleon, are showing the same features [4].…”

Section: Novelty and Foundational Charactersupporting

confidence: 55%

Advances in Relativistic Fluid Dynamics, Observables, and Applications - In Memoriam Walter Greiner

Csernai

2018

EPJ Web Conf.

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Abstract. Walter Greiner was one of the first physicists using Relativistic Fluid Dynamics for High Energy Nuclear Reactions. The present Inertial Confinement Fusion research and development is hindered by hydrodynamic instabilities, occurring at the intense compression of the target fuel by energetic laser beams. The suggested method combines recent advances in two fields: detonations in relativistic fluid dynamics and radiative energy deposition by plasmonic nano-shells. The compression of the target can be negligible and a laser pulse achieves rapid volume ignition, which is as short as the penetration time of the light across the pellet. The reflectivity of the target can be made negligible, and the absorptivity can be increased by one or two orders of magnitude using plasmonic nanoshells embedded in the target fuel. Thus, higher ignition temperature can be achieved with modest compression. The short light pulse can heat most of the interior of the target to the ignition temperature simultaneously. This prevents the development of any kind of instability, which would prevent complete ignition or transition of the target.

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Section: Novelty and Foundational Charactersupporting

confidence: 55%

Advances in Relativistic Fluid Dynamics, Observables, and Applications - In Memoriam Walter Greiner

Csernai

2018

EPJ Web Conf.

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“…In the CF method [57], the fluid velocity u µ (t f , x) and temperature T (t f , x) fields are converted into free particles at a freeze-out surface Σ at constant time t f . In principle, one has to ensure that energy and momentum are conserved during the freeze-out procedure [66]. However, the associated corrections are zero if the equation of state is the same before and after the freeze-out, as it is assumed in the present study.…”

Section: Jets In Ideal Hydrodynamicsmentioning

confidence: 80%

Universality of the diffusion wake from stopped and punch-through jets in heavy-ion collisions

et al. 2009

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We solve (3+1)-dimensional ideal hydrodynamical equations with source terms that describe punch-through and fully stopped jets in order to compare their final away-side angular correlations in a static medium. For fully stopped jets, the backreaction of the medium is described by a simple Bethe-Bloch-like model which leads to an explosive burst of energy and momentum (Bragg peak) close to the end of the jet's evolution through the medium. Surprisingly enough, we find that the medium's response and the corresponding away-side angular correlations are largely insensitive to whether the jet punches through or stops inside the medium. This result is also independent of whether momentum deposition is longitudinal (as generally occurs in pQCD energy loss models) or transverse (as the Bethe-Bloch formula implies). The existence of the diffusion wake is therefore shown to be universal to all scenarios where momentum as well as energy is deposited into the medium, which can readily be understood in ideal hydrodynamics through vorticity conservation. The particle yield coming from the strong forward moving diffusion wake that is formed in the wake of both punch-through and stopped jets largely overwhelms their weak Mach cone signal after freeze-out.

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“…[ 1] The effect was dominant, it was used to estimate the compressibility of nuclear matter, and the general expectation was that this is a good tool to find the threshold of the phase transition of the Quark Gluon Plasma. The reason is that the pressure decreases considerably versus the energy density in a first order phase transition, when the phase balance and formation of the new phase prevents the pressure from increasing in the mixed phase region.…”

Section: The Soft Pointmentioning

confidence: 99%

The 3rd Flow Component as a QGP Signal

Csernai¹,

Anderlik²,

Anderlik³

et al. 2005

Acta Physica Hungarica A) Heavy Ion Physics

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Abstract. Earlier fluid dynamical calculations with QGP show a softening of the directed flow while with hadronic matter this effect is absent. On the other hand, we indicated that a third flow component shows up in the reaction plane as an enhanced emission, which is orthogonal to the directed flow. This is not shadowed by the deflected projectile and target, and shows up at measurable rapidities, y c m = 1 − 2. To study the formation of this effect initial stages of relativistic heavy ion collisions are studied. An effective string rope model is presented for heavy ion collisions at RHIC energies. Our model takes into account baryon recoil for both target and projectile, arising from the acceleration of partons in an effective field. The typical field strength (string tension) for RHIC energies is about 5-12 GeV/fm, what allows us to talk about "string ropes". The results show that QGP forms a tilted disk, such that the direction of the largest pressure gradient stays in the reaction plane, but deviates from both the beam and the usual transverse flow directions. The produced initial state can be used as an initial condition for further hydrodynamical calculations. Such initial conditions lead to the creation of third flow component. Recent v 1 measurements are promising that this effect can be used as a diagnostic tool of the QGP.

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Introduction to Relativistic Heavy Ion Collisions

Cited by 151 publications

References 0 publications

Advances in Relativistic Fluid Dynamics, Observables, and Applications - In Memoriam Walter Greiner

Advances in Relativistic Fluid Dynamics, Observables, and Applications - In Memoriam Walter Greiner

Universality of the diffusion wake from stopped and punch-through jets in heavy-ion collisions

The 3rd Flow Component as a QGP Signal

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