Prof.
Concettina Sfienti
(Johannes Gutenberg-Universität Mainz)
25/01/2016, 07:30
Hadron Physics
Prof.
Laura Fabbietti
(TUM)
25/01/2016, 07:50
Relativistic Heavy Ion Physics
Dr
Pierre Capel
(Université Libre de Bruxelles (ULB))
25/01/2016, 08:10
Nuclear Structure and Astrophysics
Prof.
Wolfgang Kuehn
(JLU Giessen)
25/01/2016, 08:30
Elementary Particle Physics
Prof.
Wolfgang Bauer
(MSU)
25/01/2016, 09:45
Hydrodynamic simulations have been pillars of nuclear theory for several
decades. Here we will show that we can construct transport theories that
capture all of the hydro features in the limit of very short mean free
path, but also are applicable for large mean free path scenarios, in which
hydro fails. We will solve a series of standard hydrodynamics test cases
and also who that we can...
Prof.
Wolfgang Gradl
(Mainz University)
25/01/2016, 11:45
With the huge amount of data collected with BESIII detector at different center of mass energies, recently significant progresses on the study of XYZ states, light hadron spectroscopy and charm decays were achieved. In this talk, the most recent results from BESIII will be presented.
Mr
Adrian Weber
(Institut für Kernphysik, Johannes-Gutenberg-Universität Mainz)
25/01/2016, 17:00
The proton is a basic constituent of matter, but its fundamental properties like the radius are, in spite of all effort, still not understood properly. The measurements of the radius via interaction with electrons or muons yield significantly different results, leading to the so called proton radius puzzle.
To bring new insight into the observed discrepancy a new electron scattering...
Mr
Frederic Colomer
(ULB (Université Libre de Bruxelles))
25/01/2016, 17:03
The ratio method is a recent observable that has been proposed for the study of halo nuclei [1]. It consists of the ratio of breakup angular distribution and the summed angu- lar distribution (which includes elastic, inelastic and breakup) and removes the reaction model dependence. Originally, this method was developed for high and intermediate ener- gies and studies of the reactions of 11 Be...
Mr
Leonard Koch
(JLU Giessen)
25/01/2016, 17:06
In the near future, the Belle~II experiment at the SuperKEKB
accelerator at KEK in Tsukuba, Japan, will start operation at a
luminosity a factor $40$ higher than its predecessor experiment,
Belle. The physics program includes the search for physics beyond the
Standard Model of particle physics by the investigation of $CP$
violating processes and rare $B$ meson decays. Many...
Mr
Giulio Mezzadri
(INFN Ferrara)
25/01/2016, 17:09
The BESIII experiment at the electron positron collider BEPCII
in Beijing is successfully operating since 2008 and has collected large data samples in the tau-mass region, including the world’s largest data samples at the J/psi and psi’ resonances. In particular decays of these two resonances provide a rich
and clean environment to study hadrons consisting out of light quarks and search...
Mr
Simon Kegel
(Institut fuer Kernphysik Uni Mainz)
25/01/2016, 17:12
Electron-Scattering-Experiments offer a deep insight into nuclear structure. While elastic Electron-Scattering is a technique used to determine the charge-radius of nuclei, the study of resonances or excited states can be used to test effective-field theories in a perturbative frame.
Especially in the last years further progress was made in this field by performance of ab-initio calculations...
Mrs
Lucia Oliva
(INFN-Laboratori Nazionali del Sud, University of Catania)
25/01/2016, 17:15
In this study we model early times dynamics of relativistic heavy ion collisions by an initial color electric field which then decays to a plasma by the Schwinger mechanism, coupling the dynamical evolution of the initial color field to the dynamics of the many particles system produced by the decay. The latter is described by relativistic kinetic theory in which we fix the ratio $eta/s$...
Prof.
Vladimir Yurevich
(Joint Institute for Nuclear Research)
25/01/2016, 17:18
The picosecond pulse of quasi-monoenergetic high-energy neutrons is produced in each interaction of relativistic heavy nuclei in light target. The energy and angular distributions of the neutrons for Pb + 1H and Pb + C collisions are estimated using Lorentz transformation of a Moving Source Model fit to the neutron data for reactions p + Pb and C + Pb at GeV energies. The analysis of neutron...
Dr
Dagmar Adamova
(Nuclear Physics Institute AS CR)
25/01/2016, 17:21
The computing infrastructure for the LHC data handling (Worldwide LHC
Computing Grid - WLCG) was well prepared for Run2 and delivered a steady data processing since the first collisions. Over the past years including the Run1 period of the LHC the WLCG developed a unique expertise in building and operating a very large scale infrastructure for unprecedented amounts of LHC-produced data....
Mr
Lukas Kramarik
(Czech Technical University in Prague)
25/01/2016, 17:24
Hard partons produced in the early stage of high-energy heavy-ion collisions suffer energy loss in the Quark-Gluon Plasma (QGP) via gluon radiation and elastic collisions while propagating through this medium. Jet reconstruction provides access to the kinematics of these partons. Reconstructed jets are therefore powerful tools to study the properties of the QGP. Theoretical models predict a...
Raffaele Del Grande
(INFN-LNF)
25/01/2016, 17:27
The recent hyperon-nucleon/nuclei correlation studies performed by the AMADEUS collaboration might reveal unprecedent informations on the K- low-energy interaction with light nuclei thanks to the unique kaon beam provided by the DAFNE collider and the excellent features of the KLOE detector. The Lp and the S0p final states, produced in the K- absorption processes on 12C and 4He, were analyzed....
Mr
Gianfranco Morello
(LNF)
25/01/2016, 17:30
The BESIII Experiment collected large data samples for electron-positron collisions with center-of-mass above 4 GeV during 2013 and 2014. The analysis of these samples has resulted in a number of surprising discoveries, such as the discoveries of the electrically charged 'Zc' structures, which, if resonant, cannot be accomodated in the traditional charm quark and anti-charm quark picture of...
Mrs
Savanna Marie Shaw
(CERN)
25/01/2016, 17:33
The ATLAS trigger has been successfully collecting collision data during the first run of the LHC between 2009-2013 at a centre-of-mass energy between 900 GeV and 8 TeV. The trigger system consists of a hardware Level-1 (L1) and a software based high-level trigger (HLT) that reduces the event rate from the design bunch-crossing rate of 40 MHz to an average recording rate of a few hundred...
Dr
Pavel Semenov
(IHEP Protvino)
25/01/2016, 17:36
PANDA Forward Spectrometer Calorimeter
The PANDA experiment is one of the challenging projects being constructed on new FAIR facility near Darmstadt. It will use the antiproton beam from the High Energy Storage Ring colliding with an internal proton target and a general purpose spectrometer to carry out a rich and diversified hadrons physics program. One of the main PANDA detectors is a...
Dr
Viviana Mossa
(INFN sez. di Bari - Università degli studi di Bari)
25/01/2016, 17:39
The Big Bang Nucleosynthesis (BBN) describes the production of light nuclides in the first minutes of cosmic time. It started with deuterium accumulation when the Universe was cold enough to allow 2H nuclei to be survived to photo-disintegration.
A primordial deuterium abundance evaluation D/H=(2.65±0.07)×10^(-5) [1] is obtained by merging BBN calculations and CMB analysis obtained by the...
Mrs
Iryna Schätti-Ozerianska
(Jagiellonian Univ)
25/01/2016, 17:44
The eta meson production process can be studied via measurements of the analyzing power, Ay,
which may be understood as a measure of the relative deviation between the dierential cross
section with and without polarized beam. Spin-dependent observables such as cross sections and
analyzing powers have been determined only for a small number of excess energies and with very
high statistical...
Dr
Patrick Achenbach
(Mainz University)
26/01/2016, 17:00
Charge symmetry of the strong interaction predicts that the Λp and Λn interaction and consequently their contribution to the binding energies of mirror hypernuclei are identical. In the system of A=4 hypernuclei, however, emulsion measurements found an exceptionally large difference of 0.35 ± 0.05 MeV for the ground state binding energies. Very recently gamma-ray measurements in Λ-He4 at...
Prof.
John F. sharpey-Schafer
(University of the Western Cape, South Africa)
26/01/2016, 17:20
Classical macroscopic considerations indicate that the nuclear surface energy is too strong to allow shape vibrations of the nucleus low enough in energy to be found within the pairing gap. The experimental evidence for the need for configuration dependent pairing to explain low-lying ex-“β vibration” 0+ states in deformed nuclei will be reiterated. The low-lying Kπ=2+ ex-“γ vibration” states...
Prof.
Georg Wolschin
(U Heidelberg)
26/01/2016, 18:40
The statistical hadronization (or thermal) model was initially developed by Hagedorn for hadron collisions above 10 GeV/c primary laboratory momentum [1]. In relativistic heavy-ion physics, many authors have developed it further and compared to a large amount of data in particular for hadron production rates, e.g. [2,3,4], where it yields excellent results.
To decide whether the system is...
Dr
Harald Merkel
(Institut für Kernphysik, Johannes Gutenberg-Universität Mainz)
27/01/2016, 17:00
The Mainz Energy recovery Superconducting Accelerator (MESA) is currently under construction. The accelerator principle of an energy recovery linac will provide a high polarized electron beam with a beam current of up to 10mA with high polarization and an excellent beam quality at the same time, however at a modest end-point energy of around 100 MeV. The high internal current allows to use a...
Dinko Atanasov
(Max-Planck Institute for Nuclear Physics)
27/01/2016, 17:25
The rapid neutron capture process (r-process) is believed to be responsible
for the creation of a big portion of the elements heavier than iron.
The path of the r-process proceeds in a region of the chart of nuclides where no or little experimental
information is available. While astrophysical scenarios are available, they are all require significant
experimental input from nuclear...
Mr
Mikhail Mikhasenko
(HISKP, Uni Bonn)
27/01/2016, 17:45
From new precise data of the modern experiments, it becomes clear that the pure isobar model works only qualitatively and not able to describe the data in presence of many inelastic channels. The final state interactions modify the shape of isobars and produce additional structures on the Dalitz plot as well as on the 3 particles mass distribution. The first order correction to the isobar...
Dr
Michael Ryan Clark
(CERN)
27/01/2016, 18:05
ATLAS measurement of azimuthal correlations between particle pairs at large pseudorapidity separation in pp and pPb collisions are presented. The data were collected using a combination of the minimum-bias and high track-multiplicity triggers. A detailed study of the dependence of two-particle correlations on the charged particle multiplicity, transverse momentum of the pair constituents and...
Dr
Anselm Esser
(Inst. f. Kernphysik / Uni Mainz)
27/01/2016, 18:25
Beam-normal single-spin asymmetry in the elastic scattering of electrons is a direct probe for the two photon exchange.
At the Mainz Mictrotron, this asymmetry has been measured for Carbon-12 at a Q² of 0.04 GeV². A 570 MeV continuous wave electrons beam was scattered on a carbon target and detected by two magnetic spectrometers. Quartz glass cherenkov detectors located at the elastic line in...
Prof.
Horst Stoecker
(GSI and J.W. Goethe Universitaet)
28/01/2016, 09:00
The nearly quarkless early stage of high multiplicity collider events allows to study dense , hot and cold cosmic matter, its changing phase structure and its transport and nonequilibrium properties in the laboratory. Experimental observables which allow for detection of such novel forms of matter are discussed.
Prof.
Thomas Mannel
(University of Siegen)
28/01/2016, 09:45
The charm quark as an intermediate case between the light and
the heavy quarks is on then hand
an interesting laboratory to test QCD, e.g. by the spectroscopy of its
hadronic states, on the other hand
it provides an important source for the flavor physics of an up-type
quark. In this talk I plan to give a
short overview of these two interlinked aspects of charm physics.
Prof.
Pierre Capel
(Univ. Bruxelles)
28/01/2016, 17:00
Coulomb breakup has been proposed as an indirect method to deduce the cross section of radiative captures of astrophysical interest [1]. In Coulomb breakup, the projectile dissociates into lighter fragments through its interaction with a heavy (high Z) target. Assuming the dissociation to be due to the sole Coulomb interaction, the reaction can be described as an exchange of virtual photons...
Mr
Oliver Arnold
(Technische Universitaet Muenchen)
28/01/2016, 17:25
In the last years, the hyperon-nucleon interaction became the focus of attention by an astrophysical measurement of a quite heavy neutron star of two solar masses. Model calculations, which try to describe such a heavy star usually fail, because of the appearance of hyperons in the model predictions which lead to a too strong softening of the equation of state. Because the models need input...
Mr
Leonardo Cristella
(CERN)
28/01/2016, 18:45
Using large data samples of di-muon events, CMS has performed detailed
measurements and searches for new states in the field of exotic quarkonium. We
present our results on the production of prompt and non-prompt X(3872),
detected in the J/ψ ππ decay channel, which extend to higher pT values than in
any previous measurement. The cross-section ratio with respect to the ψ(2S) is
given...
Prof.
Peter Krizan
(Ljubljana University and J. Stefan Institute)
29/01/2016, 09:00
No abstract delivered
Dr
Sebastian Neubert
(Heidelberg University)
29/01/2016, 11:45
The LHCb experiment is designed to study the decays and properties of heavy flavoured hadrons produced in the forward region from pp collisions at the CERN Large Hadron Collider.
During Run1, it has recorded the world’s largest data sample of beauty and charm hadrons, enabling precise studies into the spectroscopy of such particles, including discoveries of new states in the meson as well as...
Ms
Lucia Leardini
(Physikalisches Institut (PI) Heidelberg)
29/01/2016, 17:20
Neutral mesons, such as $\pi^{0}$ and $\eta$, are probes for the study of the energy loss of partons traversing the hot and dense medium, the Quark-Gluon Plasma, that is formed in heavy-ions collisions. Moreover, they represent the largest background for the direct photon measurement and an accurate estimate is therefore necessary to determine the decay photon contribution.
The ALICE...
Leyla Atar
(TU Darmstadt)
29/01/2016, 17:40
According to the Independent Particle Model (IPM) the single particle states are fully occupied with a spectroscopic factor one. However in electron-induced proton knockout reactions a reduction of single-particle strengths has been observed to about 60-70% for stable nuclei in comparison to the IPM. This finding has confirmed by nuclear knockout reactions using stable and exotic beams...
Prof.
Wolfgang Trautmann
(GSI Helmholtzzentrum Darmstadt)
29/01/2016, 18:20
The nuclear equation-of-state is a topic of highest current interest in nuclear structure and reactions as well as in astrophysics. In particular, the equation-of-state of asymmetric matter and the symmetry energy representing the difference between the energy densities of neutron matter and of symmetric nuclear matter are not sufficiently well constrained at present.
The density...
Ms
Maitreyee Mukherjee
(HBNI)
Relativistic Heavy Ion Physics
Poster
Fluctuations of various observables in heavy-ion collisions at ultra-relativistic energies have been extensively studied in literature as they provide important signals regarding the formation of the Quark Gluon Plasma. ‘Multiplicity’ denotes the number of produced particles after the collision. Multiplicity distribution and their fluctuations shed light into mechanism of particle production...
Dr
Sebastian Maerkisch
(TU-München)
Applications and Instrumentations
Extended Contribution
no abstract delivered
