Dr
Daniel Fernandez-Fraile
(Institut für Theoretische Physik, Frankfurt)
03/09/2012, 09:15
In this talk I will review recent advances in the computation of transport coefficients of strongly-interacting theories using field-theory methods. In particular, I will make special emphasis on the computation of the shear and bulk viscosities, and aspects such as possible bounds in these coefficients, relationship with anomalies, sum rules, etcetera. The behavior of transport coefficients...
Dr
Selyuzhenkov Ilya
03/09/2012, 10:00
Introduction to the main ideas and highlights from
recent measurements of the anisotropic flow and
azimuthal correlations in a heavy-ion collisions
by RHIC and LHC experiments will be presented.
Dr
Giorgio torrieri
(ITP, JW Goethe Universitat, Frankfurt)
03/09/2012, 11:00
We examine the quark percolation transition at finite density, discovered in [1] and generalized to the full phase diagram in [2].
We show that this transition has many of the characteristics claimed for quarkyonic matter as defined in [3]. The percolation transition should arise, in our physical world (3 colors, 2-3 flavors) at densities parametrically larger than normal nuclear density but...
Dr
Sarmistha Banik
(Saha Institute of Nuclear Physics)
03/09/2012, 11:30
The Equation of state (EoS) of hot and dense matter plays a fundamental role in the understanding of core-collapse supernova. A phase transition from hadronic to exotic phases might occur
in the early post-bounce phase of a core collapse supernova. We investigate the emergence of strange hyperons in the dynamical collapse of a non-rotating massive star to a black hole. We follow the dynamical...
Ms
Stefanie Lourenco
(Justus-Liebig Universitaet Giessen)
03/09/2012, 17:00
A central activity of the upcoming FAIR@GSI facility will be the use of antiprotons for a large variety of investigations at PANDA detector and AIC storage ring. The focus of the studies is on the one hand to understand antimatter-matter interactions and on the other hand to use antiproton beams for spectroscopic studies of hadrons. The aim of our work is to understand antinucleon-nucleon...
Mr
Lucas Burigo
(Frankfurt Institute for Advanced Studies, J.-W. Goethe-University, 60438 Frankfurt am Main, Germany)
03/09/2012, 17:30
The BIOMAT facility at FAIR will allow measurements of the physical and biological effects for heavy ion beams with energies up to 10A GeV [1]. The evaluation of space radiation effects through the irradiation with particles and energies similar to those found at cosmic rays is possible. Such experiments are becoming ever more important with the increase of the duration of space missions. The...
Dr
Schmah, for the STAR collaboration Alexander
04/09/2012, 09:15
RHIC results at top collisional energy ($\sqrt{s_{NN}}$ = 200 GeV) suggest a strongly coupled partonic matter, namely the Quark Gluon Plasma (QGP), has been formed in central Au+Au collisions. With the RHIC Beam Energy Scan a wide range in the QCD phase diagram temperature vs. baryon chemical potential is covered. A phase transition between the QGP and the hadron gas phase is expected in this...
Mr
Bastian Schuetrumpf
(Institut fuer Theoretische Physik, Goethe-Universitaet)
04/09/2012, 11:00
We present simulations of neutron-rich matter at subnuclear densities, like supernova matter, with the time-dependent Hartree-Fock approximation at temperatures of several MeV. This matter evolves into spherical rod-like and slab-like shapes and mixtures thereof.
The simulations employ a full Skyrme interaction in a periodic three-dimensional grid. With an improved Minkowski analysis, all...
Dr
Liliana Caballero
(TU Darmstadt)
04/09/2012, 11:30
This talk will address the impact of astrophysical effects on terrestrial neutrino detectors. More specifically, the strong gravitational field around a black hole changes the neutrino fluxes emitted from the surrounding disk. We present effects of general relativity on the nucleosynthesis resulting from the interaction of the neutrinos emitted and matter outflowing such disks.
Dr
Alexandros Gezerlis
(EMMI & TU Darmstadt)
04/09/2012, 12:00
In this talk I will discuss both finite and infinite systems. The physical settings will range from heavy nuclei, to neutron stars, and down to ultracold atomic gases. More specifically, I intend to talk about quantum many-body theory in various forms, most notably energy-density functionals and microscopic Monte Carlo simulations on modern supercomputers. Touching upon many theoretical...
Mr
Bjoern Baeuchle
(FIAS Frankfurt)
04/09/2012, 17:30
Photons, as all electromagnetic probes, can give direct access to the
hot and dense phase of a heavy-ion reaction. We show calculations of
direct photon emission at SiS100- and SiS-300 energies with the
UrQMD-hybrid model. UrQMD is a full microscopic+macroscopic
transport/fluiddynamics hybrid model with hadron- and string-driven
equilibration phase, a full (3+1)-dimensional fluiddynamic...
Dr
Gernot Eichmann
(University of Giessen)
05/09/2012, 09:15
I discuss recent progress for hadron properties that are obtained from solving Dyson-Schwinger, Bethe-Salpeter and Faddeev equations. The topics that will be addressed include: results for the nucleon's electromagnetic and axial form factors, for the nucleon-delta electromagnetic and pseudoscalar transition form factors, and a tetraquark interpretation of the lowest-lying scalar meson. A...
Mr
Adrian Dybczak
(Jagiellonian University, Cracow)
05/09/2012, 10:00
One of the main physics goals of HADES is to investigate spectral modifications of light vector mesons in strongly interacting matter via their dilepton (e+e−) decay channel. Theoretical models predict such modifications due to strong meson-baryon resonance coupling which can be also probed in elementary collisions. In 2007 electron-positron pair production has been measured in p+p reactions...
Dr
Cristina Morales
(Helmholtz Institute Mainz)
05/09/2012, 11:00
Electromagnetic form factors (EMFFs) are key ingredients to the understanding of the internal structure of composite particles like baryons, since they contain information about the spatial distributions of charge and current inside the particle. Thus, they are a physical and measurable manifestation of the nature of the baryon constituents and the dynamics that binds them...
Dr
Paula Pérez Rubio
(Universität Regensburg)
05/09/2012, 11:30
Quantum Chromodynamics (QCD) has been accepted as the theory
that describes the strong interactions, i.e., the
interactions between quarks and gluons. QCD is an asymptotically
free theory, hence, perturbation theory can be applied in
the high energy regime, where many successful
quantitative predictions have been made.
The description of low energy QCD phenomena
i.e, in the...
Ms
Jacqueline Bonnet
(Institut für Kernphysik , JLU Giessen)
05/09/2012, 12:00
Strong magnetic fields, as produced during heavy ion
collisions, are expected to influence the QCD phase structure.
Therefore, theoretical investigations have been performed
within effective model calculations as well as within lattice gauge
theory and functional renormalization group frameworks.
The findings opened up intense discussions since they were rather different and even...
Ms
Walaa Eshraim
(University of Frankfurt)
05/09/2012, 17:00
We study a chiral Lagrangian which describes the two-body and three-body decays of a pseudoscalar glueball into scalar and pseudoscalar mesons. The branching ratios represent a clear and parameter free prediction of our approach. In agreement with Lattice simulations, we evaluate the decays for a pseudoscalar glueball with a mass of 2.6 GeV, which is in the reach of the future Panda experiment...
Dr
Denis Parganlija
(Vienna TU)
05/09/2012, 17:30
There is a range of QCD phenomena beyond the reach of first-principles QCD. The well-known running of the strong coupling induces a strongly bound, non-perturbative regime of QCD in which hadrons are formed. The non-perturbativity forces us to reach for effective approaches in order to understand hadron structures and interactions.
These structures and interactions are particularly important...
Michael Deveaux
(Goethe University Frankfurt)
06/09/2012, 09:15
The Compressed Baryonic Matter Experiment (CBM) will explore the phase diagram of hadronic matter in the regime of highest baryon densities. Nuclear fireballs created in heavy ion collisions of 8-45 AGeV beam energy will be studied with numerous probes, among them open charm and light vector mesons.
Reconstructing those rare probes requires a vacuum compatible micro vertex detector (MVD) with...
Mr
Jan Lücker
(JLU Gießen)
06/09/2012, 10:00
We investigate the phase structure of QCD at finite temperature and chemical potential by solving a coupled set of truncated Dyson-Schwinger equations for the quark and gluon propagator. We take into account the full back-reaction of the quarks onto the Yang-Mills sector and we include the effects of strange quarks. We discuss the resulting thermal mass of the unquenched gluon propagator and...
Mr
Andreas, for the CBM TRD Groupe Arend
(IKF, Uni Frankfurt)
06/09/2012, 11:00
The decay of the D-Meson as well as the J/Psi are key measurements of the future CBM experiment at FAIR. To contribute to these measurements the Transition Radiation Detector of the CBM experiment will provide electron-pion separation and will contribute to the experiment-wide tracking in an environment of unprecedented high particle fluxes.
This talk will give an overview on the status of...
Dr
Ionut Cristian, on behalf of the ALICE Collaboration Arsene
06/09/2012, 11:30
The hot and dense nuclear matter created in nuclear collisions at relativistic energies consists of a plasma of deconfined quarks and gluons.
Due to their large mass, the charm quarks are mainly formed in the first instants of
the nuclear collision and will consequently experience the full history of the system.
It was predicted that the strongly bound $J/\psi$ state will be suppressed in...
Ms
Valentina Akishina
(Frankfurt University)
06/09/2012, 12:00
Dr
Christina Dritsa
(University Giessen)
06/09/2012, 17:00
The Compressed Baryonic Matter (CBM) experiment at the Facility for
Antiproton and Ion Research (FAIR) at Darmstadt will be a dedicated
heavy-ion experiment for the investigation of baryonic matter at highest
net-baryon densities. The measurement of some of the key observables of
the physics program of CBM requires clean and efficient electron
identification which will be performed...
Mrs
Claudia Behnke
(Institut fuer Kernphysik, Goethe-Universitaet, Frankfurt, Germany)
06/09/2012, 17:30
Photons and lepton pairs emerging from decays of virtual photons are
the most promising probes of dense hadronic matter. In the energy domain of 1 - 2 GeV per nucleon, HADES has measured electron pairs in C+C, Ar+KCl, p+p, d+p and p+Nb collisions. For the first time the
electron pairs were reconstructed from quasi-free n+p sub-reactions by detecting the proton spectator from the deuteron...
Dr
Anar, for the NA49 and NA61/SHINE collaborations Rustamov
07/09/2012, 09:15
The study of event‐by‐event fluctuations of chemical (particle
type) composition in high‐energy nucleus-nucleus collisions is a
helpful tool to pin-down the properties of strongly interacting matter.
Indeed, according to theoretical calculations, the QCD critical point
may be signalled by a characteristic pattern in the measured
fluctuations. In this contribution a new method for...
Dr
George Moschelli
(Frankfurt Institute for Advanced Studies)
07/09/2012, 10:00
Ms
Laura Zotti
(University of Torino and INFN Torino)
07/09/2012, 11:00
PANDA is a fixed target experiment that will be carried out at the future FAIR facility. PANDA will provide an excellent tool to address fundamental questions in the field of the hadronic physics, with a physics program that extends from the investigation of QCD to the test of fundamental symmetries.
The Micro-Vertex-Detector (MVD) located in the innermost part of the central tracking system...
Dr
Alicia Sanchez Lorente
(GSI Helmholtzzentrum für Schwerionenforschung GmbH)
07/09/2012, 11:30
Hypernuclear research will be one of the main topics addressed by the PANDA experiment
at the planned Facility for Antiproton and Ion Research FAIR at Darmstadt (Germany).
Thanks to the use of stored antiproton beams, copious
production of double Lambda hypernuclei is expected at the
PANDA experiment, which will enable high precision gamma
spectroscopy of such nuclei for the first...
Mr
Stephan Endres
(Frankfurt Institute for Advanced Studies / University of Frankfurt)
07/09/2012, 17:30
Dilepton production in the SIS energy regime is analysed with the Ultra-relativistic Quantum Molecular Dynamics model. Invariant mass and transverse momentum spectra of electron-positron pairs in elementary and nucleus-nucleus collisions calculated with our transport approach are compared to the different experimental results published by the HADES collaboration. The model results give a good...
Mr
Manuel Lorenz
(University Frankfurt)
08/09/2012, 09:30
The HADES experiment, installed at the Helmholtzzentrum für Schwerionenforschung (GSI) accelerator facility in Darmstadt,
investigates dielectron emission and strangeness production in various collision systems (p+p, p+n, p+A and A+A) in the 1-3.5 AGeV regime.
The observed low-mass dielectron and cascade enhancement in intermediate heavy-ion collisions indicates the onset of medium effects,...
Mr
Janus Weil
(JLU Giessen)
08/09/2012, 10:15
We investigate dilepton production at SIS energies with the GiBUU transport code [1] in a resonance model approach. In a first step, we fix the model parameters via dilepton spectra from elementary NN collisions (as measured by the DLS and HADES collaborations). We argue that a large part of the so-called 'DLS puzzle' is due to an improper understanding of the elementary reactions, and that...
