Conveners
Parallel Session VI: Initial Conditions
- Tuomas Lappi (University of Jyvaskyla)
The Color Glass Condensate (CGC) formalism with event-by-event fluctuations in the transverse plane has led to excellent results when coupled to viscous relativistic hydrodynamics. Recently, some of us have suggested analytic and semi-analytic solutions to event-averaged quantities in the CGC formalism based on a near field approximation [Phys. Rev. C 92, 064912 (2015)]. This approach gives...
Exclusive vector meson production can be used to directly probe the gluon density of a hadron. Measuring the cross section differentially in momentum transfer t makes it possible to determine the transverse density profile (via coherent diffraction) and density fluctuations (incoherent diffraction) of the target hadron. This knowledge on the geometric fluctuations of the proton is particularly...
In this talk, we debut a new formulation of IPGlasma and present the first systematic study of the effects of pre-equilibrium longitudinal flow on hadronic and electromagnetic observables in Pb+Pb collisions at 2.76 TeV and 5.02 TeV. The saturation physics based IPGlasma model naturally provides a non-zero initial longitudinal flow through its pre-equilibrium Yang-Mills evolution. Hydrodynamic...
An initial state is created based field dominance and on flux-tubes or streaks in the transverse plane with local momentum and angular momentum conservation and local shear. The global dynamical consequences as well as polarization and correlations of produced particles will be discussed.
ATLAS measurements of correlations between particle pairs in relative azimuthal angle ($\Delta\phi$) and pseudorapidity separation ($\Delta\eta$), in $pp$ collisions at $\sqrt{s}$=2.76, 5.02 and 13~TeV, and in $p$+Pb collisions at $\sqrt{s_{\mathrm{NN}}}$=5.02~TeV are presented. Prior measurements have shown that in $pp$ collisions with a large multiplicity of produced particles, a long-range...
