### Conveners

#### Plenary

- Tomas Brauner (University of Stavanger)

#### Plenary

- Tomas Brauner (University of Stavanger)

#### Plenary

- Mikhail Shaposhnikov (EPFL)

#### Plenary

- Mikhail Shaposhnikov (EPFL)

#### Plenary

- Alexander Rothkopf (Heidelberg University)

#### Plenary

- Alexander Rothkopf (Heidelberg University)

#### Plenary

- Jacopo Ghiglieri (Universitaet Bern (CH))

#### Plenary

- Jacopo Ghiglieri (Universitaet Bern (CH))

#### Plenary

- Guy Moore ()

#### Plenary

- Guy Moore ()

A brief overview of the ultra-relativistic heavy ion physics programme at the Large Hadron Collider at CERN will be given. Collisions of lead ions have been studied at a center-of-mass energy per nucleon of 2.76 TeV (run I), and, more recently, at 5.02 TeV (run II). The ultimate goal of heavy-ion collisions is the study of the properties of the deconfined and chirally restored state of matter...

I review recent results on QCD thermodynamics from lattice simulations. In particular, I will focus on the QCD equation of state at zero and finite chemical potential, the curvature of the phase diagram and fluctuations of conserved charges. The latter will be compared to experimental data, to the purpose of extracting the chemical freeze-out temperature and chemical potential from first principles.

Uncovering the nature of the electroweak (EW) phase transition in the early Universe would be key to shed light on the possible origin of the cosmic matter-antimatter asymmetry. We discuss various ways in which searches for new physics beyond the Standard model at the LHC can be used to probe the nature of the EW phase transition, and their implications for the generation of the baryon...

There has been a growing evidence that the standard formulation of Quantum Field Theory using path integrals and Feynman diagrams fails to explain unexpected simplicity and hidden symmetries of the scattering amplitudes. I show that in a certain gauge theory there exists a radically different picture for amplitudes as volumes of "Amplituhedron" which is a higher-dimensional generalization of...

There are good motivations to consider that the flavour structure could emerge during electroweak symmetry breaking, for example if the Froggatt-Nielsen field dynamics were linked to the Higgs field. Remarkably, the the nature of the electroweak phase transition is completely changed when the Standard Model Yukawas vary at the same time as the Higgs is acquiring its vacuum expectation value,...

Stability of the electroweak vacuum in the very early universe is a novel probe of high energy physics. A key question

is whether new physics beyond SM is required to maintain stability against inflationary fluctuations of the Higgs field.

Here curvature couplings induced by radiative corrections in curved space play a crucial role. I review the topic and show

that curvature effects can keep...

We show that effective field theory techniques can be applied

in the high temperature T plasmas to

improve the accuracy of the physics of the hard scales ( or scales of order T).

At leading order in the

coupling constant the hard scales of the plasma can be viewed as

on-shell classical particles. Based on this observation, and without any

reference

to the state of the system, we...

Chirality of fermions has a topological nature. This microscopic property modifies the macroscopic hydrodynamic behavior and leads to unusual transport phenomena protected by topology in relativistic systems. We show how conventional kinetic theory should be modified to take into account such effects. We also discuss their potential importance in strong and electroweak matter, and, in...

Strongly interacting quarks and gluons exposed to a background magnetic field reveal a rich physical structure. This topic has recently become of interest, both because it challenges our understanding of the underlying theory (QCD) as well as due to a wide range of phenomenological applications, from neutron star physics to heavy-ion collisions.

A particularly interesting aspect of this...

The measurements of the Higgs mass and top quark Yukawa coupling indicate that we live in a very special Universe, at the edge of the absolute stability of the electroweak vacuum. The most precise theoretical computations combined with the most recent LHC experiments do not allow us to decide with certainty whether our vacuum is absolutely stable or metastable. In any event, the Standard...

I will review how compact stars can serve as a laboratory for

fundamental physics, and how the latest astrophysical data can be used to put constraints on the properties of dense QCD matter, for example on its equation of state and on hydrodynamical properties of nuclear and quark superfluids. In the second, more specific, part of the talk, I will present latest results on employing...

I will discuss how hydrodynamical flow is reached in heavy-ion collisions

in the limit of weak coupling using an effective kinetic theory description

during the prethermal evolution. I present a Green function that can be

used to provide an initial condition for a hydrodynamical simulation given

the initial geometry.

Gauge/gravity duality (or "holography") allows one to calculate

highly non-trivial far from equilibrium dynamics in strongly coupled

gauge theory --- provided one can solve asymptotically anti-de

Sitter initial value problems in higher dimensional gravity. Recent

results and work in progress in this area will be discussed,

focusing on calculations motivated by the physics of heavy...