Int. Conference on the Initial Stages of High-Energy Nuclear Collisions

Session

Parallel talks - Session 4A

13 Sept 2013, 17:00

Hotel Louxo - Illa da Toxa - Galicia (Spain)

77. Tilted initial state: reasons and consequences

Volodymyr Magas (University of Barcelona)

13/09/2013, 17:00

The latest experimental data from ALICE@LHC confirm that the hydrodynamic simulations of the ultra-relativistic heavy ion collisions are very successful in describing these reactions. One of the most important elements of such a hydrodynamic model is the initial state for further hydro evolution. Unfortunately at the moment there is no unambiguous model describing the initial states of...

75. Collective excitations in anistropic quark-gluon-plasma

Katarzyna Deja (National Centre for Nuclear Research)

13/09/2013, 17:20

The quark-gluon plasma at the early stage of relativistic heavy-ion collisions is strongly anisotropic. We systematically study spectrum of collective excitations of such a plasma which is a fundamental characteristic of any many-body system. We demonstrate how the spectrum evolves when the momentum distribution of plasma constituents changes from the extremely prolate – infinitely elongated...

81. Bulk and Shear Viscosity Effects in Event-by-Event Relativistic Hydr odynamics

Frederique Grassi

13/09/2013, 17:40

Bulk and shear viscosity effects on the collective flow harmonics in heavy ion collisions are investigated, on an event by event basis, using a newly developed 2+1 Lagrangian hydrodynamic code named v-USPhydro which implements the Smoothed Particle Hydrodynamics (SPH) algorithm for viscous hydrodynamics. Bulk viscosity is shown to enhance the collective flow Fourier coefficients from...

73. Relativistic viscous hydrodynamic modeling of the Quark-Gluon Plasma with ECHO-QGP

Dr Vinod Chandra (INFN Florence)

13/09/2013, 18:00

We will present ECHO-QGP (Eulerian conservative higher-order code for QGP), a new (3+1)-dimensional numerical code developed by our team, implementing second-order relativistic viscous hydrodynamics and conceived for the study of the Quark-Gluon Plasma created in heavy ion collisions. ECHO-QGP features second-order treatment of causal relativistic viscous effects both in Minkowski and in...

78. The parton cascade BAMPS with the improved Gunion-Bertsch matrix element

Carsten Greiner (University of Frankfurt)

13/09/2013, 18:20

An updated version of the partonic transport model Boltzmann Approach to MultiParton Scatterings (BAMPS) is presented, which allows interactions among all partons: gluons, light quarks, and heavy quarks with elastic and inelastic collisions. We introduce the improved Gunion-Bertsch matrix element, which cures problems of the original Gunion-Bertsch result in characteristic regions of the phase...