Distribution of Nuclear Matter and Radiation in the Fragmentation Region

Abstract

We study the fragmentation (far forward/backward) region of heavy ion collisions by considering an at-rest nucleus which is struck by a relativistic sheet of colored glass. By means of a simple classical model, we calculate the subsequent evolution of baryons and the associated radiation. We confirm that the struck nucleus undergoes a compression and that the dynamics of the early times of the collision are best described by two separate fluids as the produced radiation's velocity distribution is very different to the velocity distribution of the matter in the struck nucleus.

arXiv comment23 pages, 11 figures. We've added a pedagogical appendix to explain the relation between different frames in a heavy ion collision. A footnote has been added to the introduction. Figures 7 and 9 have been rescaled to reflect the known nominal nuclear density. We have added a sentence below Eq.3.30 to explain the implications of our results for baryon stopping power

References in corpus (23)

• Gluon Distribution Functions for Very Large Nuclei at Small Transverse Momentum
• Heavy Ion Collisions: The Big Picture, and the Big Questions
• 3+1D hydrodynamic simulation of relativistic heavy-ion collisions
• Gluon Production from Non-Abelian Weizsäcker-Williams Fields in Nucleus-Nucleus Collisions
• Evolution at small x_bj: The Color Glass Condensate
• Gluon production in current-nucleus and nucleon-nucleus collisions in a quasi-classical approximation
• Centrality dependence of the charged-particle multiplicity density at mid-rapidity in Pb-Pb collisions at $\sqrt{s_{\mathrm{NN}}}$ = 5.02 TeV
• Centrality dependence of the pseudorapidity density distribution for charged particles in Pb-Pb collisions at $\sqrt{s_{\mathrm{NN}}}$ = 2.76 TeV
• Nonperturbative Effects in Gluon Radiation and Photoproduction of Quark Pairs
• The Color Glass Condensate and High Energy Scattering in QCD
• Bremsstrahlung of a Quark Propagating through a Nucleus
• Net baryon diffusion in fluid dynamic simulations of relativistic heavy-ion collisions
• Relativistic Heavy-Ion Collisions within 3-Fluid Hydrodynamics: Hadronic Scenario
• Centrality dependence of the pseudorapidity density distribution for charged particles in Pb-Pb collisions at $\sqrt{s_{\mathrm{NN}}}=5.02$ TeV
• (3+1)-dimensional dissipative relativistic fluid dynamics at non-zero net baryon density
• Dynamical initialization and hydrodynamic modeling of relativistic heavy-ion collisions
• Longitudinal Dynamics of High Baryon Density Matter in High Energy Heavy-Ion Collisions
• Large Baryon Densities Achievable in High Energy Heavy Ion Collisions Outside the Central Rapidity Region
• Space-Time Picture of Baryon Stopping in the Color-Glass Condensate
• Gluon Radiation from a classical point particle II: dense gluon fields
• Gluon Radiation from a Classical Point Particle
• Estimates of the baryon densities attainable in heavy-ion collisions from the beam energy scan program
• Gluon Bremsstrahlung in Relativistic Heavy Ion Collisions

Cited by in corpus (5)

• The QCD phase diagram and Beam Energy Scan physics: a theory overview
• 3-D structure of the Glasma initial state -- Breaking boost-invariance by collisions of extended shock waves in classical Yang-Mills theory
• Memory effect in Yang-Mills theory with an axion
• Gluon radiation from a classical point particle: Recoil effects
• Space-time regions of high baryon density and baryon stopping in heavy-ion collisions