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

Session

Parallel talks - Session 3A

Sep 13, 2013, 2:30 PM

Hotel Louxo - Illa da Toxa - Galicia (Spain)

99. Energy-momentum tensor correlators in hot Yang-Mills theory

Yan Zhu (Bielefeld University)

9/13/13, 2:30 PM

The transport coefficients of hot QCD plasma, in particular the bulk and shear viscosities, have attracted a lot of attention in recent years. They can be defined through the infrared limits of the corresponding spectral functions, which, however, are notoriously complicated to determine non-perturbatively. In this talk, I will present recent perturbative results for the bulk and shear thermal...

98. QCD Reggeon Field Theory from JIMWLK/KLWMIJ Evolution

Tolga Altinoluk (U)

9/13/13, 2:50 PM

We discuss how the high energy QCD evolution generated by the KLWMIJ Hamiltonian can be cast in the form of the QCD Reggeon Field Theory. We suggest a natural way of defining the Pomeron and other Reggeons in the framework of the KLWMIJ evolution and derive the QCD Reggeon field Theory Hamiltonian which includes several lowest Reggeon operators. This Hamiltonian generates evolution equations...

91. Plasma instabilities and particle production in Glasma

Shoichiro Tsutsui (Kyoto University)

9/13/13, 3:10 PM

Plasma instabilities play important roles in thermalization processes of relativistic heavy-ion collisions. We study early-stage instabilities of non-Abelian plasma on the basis of two-particle irreducible(2PI) formalism. In this presentation, We focus on Nielsen-Olesen instability caused by homogeneous but time dependent color magnetic field. For this purpose, We perturbatively solve...

67. Non-Gaussian initial conditions for evolution of observables in high-energy collisions

Elena Petreska (Graduate Center/Baruch College CUNY)

9/13/13, 3:30 PM

The proper description of the initial states of heavy ion collisions requires complete understanding of the partonic structure of the participants in the process. The essential role in the high-energy nuclear wave-functions of the target and projectile is played by the small-x gluons whose behavior and interactions are studied by the Color Glass Condensate effective theory. We extend the...

117. Gluon saturation beyond leading logs

Guillaume Beuf

9/13/13, 3:50 PM

For inclusive enough observables in DIS or pp or pA collisions, high energy leading logs are resummed thanks to the Balitsky-Kovchegov equation. I will discuss some effects appearing in this context beyond the strict leading log accuracy, such as the kinematical constraint or the running of the coupling.

1. Scattering amplitude and pomeron loops in the perturbative QCD with large $N_c$

Prof. Mikhail Braun (S.Petersburg University)

9/13/13, 4:10 PM

The amplitude for the collision of two hadrons with the lowest order pomeron loop is calculated. Numerical calculations show that the loop contribution to the amplitude begins to dominate the single pomeron exchange at rapidities $8-10$. Full dependence of the triple-pomeron vertex on intermediate conformal weights is taken into account.