### Conveners

#### New theoretical developments

- Gennady Zinovjev (National Academy of Sciences of Ukraine (UA))

30.
Center Domains and Their Phenomenological Consequences in Ultrarelativistic Heavy Ion Collisions

Masayuki Asakawa
(Osaka University)

5/20/14, 11:10 AM

New Theoretical Developments

Contributed Talk

In this talk, we first argue that a domain structure, which can be inferred from the properties of the Polyakov loop and and is called center domains, is created in the deconfined QCD matter in the early stage of ultrarelativistic heavy ion collisions. Its formation is assisted by the gauge configuration in the glasma state created right after the collisions. Then we show that the center...

Dr
Tetsuo Hatsuda
(RIKEN)

5/20/14, 11:30 AM

New Theoretical Developments

Contributed Talk

A novel method to study the bulk thermodynamics in lattice gauge theory is proposed on the basis of the Yang-Mills gradient flow with a fictitious time t. The energy density (epsilon) and the pressure (P) of SU(3) gauge theory at fixed temperature are calculated directly on 32$^3 \times$ (6,8,10) lattices from the thermal average of the well-defined energy-momentum tensor ($T_{\mu \nu}^R(x)$)...

Wilke van der Schee
(Utrecht University)

5/20/14, 11:50 AM

New Theoretical Developments

Contributed Talk

Holography has been used for a while as a strongly coupled approach to study the initial stage of heavy-ion collisions. As holographic calculations cannot directly describe QCD, importantly neglecting any weak-coupling effects, it is an interesting question how well these studies fit experimental data. Here, we will focus on longitudinal dynamics, modeled by colliding shock waves in...

Giovanni Antonio Chirilli
(The Ohio State University)

5/20/14, 12:10 PM

New Theoretical Developments

Contributed Talk

Scattering amplitudes of proton-Nucleus or Nucleus-Nucleus collisions at high-energy are described by matrix elements of Wilson line operators - infinite gauge factors ordered along the straight lines of the fast moving particles. The energy dependence of such amplitudes is described by the evolution equation of Wilson lines with respect to the rapidity parameter - the Balitsky-JIMWLK...

Peter Arnold
(University of Virginia)

5/20/14, 12:30 PM

New Theoretical Developments

Contributed Talk

Here's a fun question in gravity: What happens when a high-momentum graviton falls into a large (AdS-)black hole? Answer: Tidal forces outside the black hole can stretch the graviton from a quantum string into a large, classical string. What does this have to do with theory investigations related to jet quenching in strongly coupled plasmas? It provides a link between two very different...

Eero Aleksi Kurkela
(CERN)

5/20/14, 12:50 PM

New Theoretical Developments

Contributed Talk

In the weak coupling limit, the color-glass condensate framework predicts that the initial conditions of heavy-ion collisions are characterized by intense gauge fields, or equivalently high occupation numbers of gluons.
In my talk, I will describe how such initial conditions relax towards thermal equilibrium. In particular, I will discuss how such a system has dual descriptions in terms of...