Speaker
Frederique Grassi
Description
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 v2(pT) to v5(pT) when pT∼1−3 GeV even when the bulk viscosity to entropy density ratio, ζ/s, is significantly smaller than 1/(4π) while shear viscosity has an opposite effect.
Summary
Part of the presentation is based on arXiv:1305.1981
Author
Jacquelyn Noronha-Hostler
(U)
Co-authors
Frederique Grassi
Gabriel Denicol
(Frankfurt University)
Jorge Noronha
(U)
Rone Andrade
(Universidade de São Paulo USP)
