Liliana Apolinario
(Universidade de Santiago de Compostela (ES))
,
Nestor Armesto Perez
(Universidade de Santiago de Compostela (ES))

9/13/13, 2:30 PM

In this work we improve existing calculations of radiative energy loss by computing corrections that implement energy-momentum conservation, previously only implemented a posteriori, in a rigorous way. Using the path-integral formalism, we compute in-medium splittings allowing transverse motion of all particles in the emission process, thus relaxing the assumption that only the softest...

Stanislaw Mrowczynski
(Jan Kochanowski University, Kielce, Poland)

9/13/13, 2:50 PM

The quark-gluon plasma at the early stage of relativistic heavy-ion collisions is unstable due chromomagnetic plasma modes. The energy loss per unit path length of a fast parton scattering elastically in such a plasma is studied as an initial value problem. Although the approach is designed to study the unstable plasma, the well known results of equilibrium plasma are also reproduced. The...

Mr
Daniel Pablos
(Universitat de Barcelona)

9/13/13, 3:10 PM

We study the interaction of high energy QCD jets with strongly coupled quark gluon plasma.
We explore a hybrid approach, in which the high virtuality splitting processes that dominate the QCD shower proceed as in vacuum while the partons of the shower interact with the system as dictated by strongly coupled computations via the AdS/CFT correspondence. We discuss the Monte Carlo implementation...

Mr
Manoel Rodríguez Calvo
(USC - IPhT CEA Saclay)

9/13/13, 3:30 PM

We derive the radiation spectrum of a massive quark-gluon antenna in a QCD medium. The calculation is done in the formalism of the classical Yang-Mills (CYM) equations and interactions with the medium are handled in the harmonic oscillator approximation, valid for soft gluon emissions. We discuss the effect produced by the presence of a mass scale and compare the results with the massless...

Prof.
Fernando Navarra
(IFUSP)

9/13/13, 3:50 PM

The production of $c\bar{c}c\bar{c}$, $b\bar{b}b\bar{b}$ and $c\bar{c}b\bar{b}$ pairs in double parton scattering at LHC energies is investigated. We estimate the contribution of saturation effects to the different final states and predict the energy dependence of the cross sections. Moreover, we estimate the ratio between the double and single parton scattering cross sections for the...

Andrea Beraudo
(Universita e INFN (IT))

9/13/13, 4:10 PM

We present a state of the art QCD Equation Of State (EOS) in the limit of vanishing baryon density. Continuum-extrapolated lattice-QCD data with realistic quark masses by the Budapest-Wuppertal collaboration are employed in the high-temperature regime and are joined to a Hadron-Resonance Gas (HRG) EOS at lower temperatures. Since experimental data from heavy-ion collisions suggest that...