A5108062431- Particle physics theoretical and experimental studies
- High-Energy Particle Collisions Research
- Quantum Chromodynamics and Particle Interactions
- Particle Detector Development and Performance
- Dark Matter and Cosmic Phenomena
- Cosmology and Gravitation Theories
- Computational Physics and Python Applications
- Neutrino Physics Research
- Black Holes and Theoretical Physics
- Astrophysics and Cosmic Phenomena
- Medical Imaging Techniques and Applications
- Nuclear physics research studies
- Nuclear reactor physics and engineering
- Distributed and Parallel Computing Systems
- Advanced Data Storage Technologies
- Particle Accelerators and Free-Electron Lasers
- Radiation Detection and Scintillator Technologies
- Atomic and Subatomic Physics Research
- Radiation Therapy and Dosimetry
- Scientific Computing and Data Management
- Gamma-ray bursts and supernovae
- Advanced X-ray and CT Imaging
- Superconducting Materials and Applications
- Nuclear and radioactivity studies
- Laser-induced spectroscopy and plasma
FH Aachen
1995-2025
RWTH Aachen University
2016-2025
University of Antwerp
2024
Institute of High Energy Physics
2015-2024
A. Alikhanyan National Laboratory
2014-2024
Deutsches Elektronen-Synchrotron DESY
2019-2023
European Organization for Nuclear Research
1996-2014
Heidelberg University
1995-2013
UCLouvain
2011-2013
United States Nuclear Regulatory Commission
2013
This chapter of the report "Flavor in era LHC" Workshop discusses theoretical, phenomenological and experimental issues related to flavor phenomena charged lepton sector conserving CP-violating processes. We review current limits main theoretical models for structure fundamental particles. analyze consequences available data, setting constraints on explicit beyond standard model, presenting benchmarks discovery potential forthcoming measurements both at LHC low energy, exploring options...
Four different combinations of 4496Ru and 4096Zr nuclei, both as projectile target, were investigated at the same bombarding energy 400AMeV using a 4π detector. The degree isospin mixing between target nucleons is mapped across large portion phase space two isospin-tracer observables, number measured protons tritium to 3He yield ratio. experimental results show that global equilibrium not reached even in most central collisions. Quantitative measures stopping are extracted from data. They...
We present a complete systematics (excitation functions and system-size dependences) of global stopping side flow for heavy ion reactions in the energy range between $0.09A$ $1.93A\text{ }\text{ }\mathrm{GeV}$. For heaviest system, $\mathrm{Au}+\mathrm{Au}$, we observe plateau maximal extending from about $0.2A$ to $0.8A\text{ }\mathrm{GeV}$ with fast drop on both sides. The degree stopping, which is shown remain significantly below expectations full scenario, found be highly correlated amount flow.
We present new experimental data on directed flow in collisions of $\mathrm{Au}+\mathrm{Au},$ $\mathrm{Xe}+\mathrm{CsI},$ and $\mathrm{Ni}+\mathrm{Ni}$ at incident energies from $90A$ to $400A\mathrm{MeV}.$ study the centrality system dependence integral differential for particles selected according charge. All features are compared with isospin quantum molecular dynamics (IQMD) model calculations an attempt extract information about nuclear matter equation state (EoS). show that combination...
We present the centrality dependence of proton and deuteron rapidity distributions in Ru+Ru collisions at $400A\mathrm{MeV}.$ Data are compared with isospin quantum molecular dynamics (IQMD) calculations under various assumptions on nucleon-nucleon cross section medium. The spectra both particles can be reproduced by IQMD a free for most central collisions. ratio baryon asymmetric collision systems shows incomplete mixing partial transparency projectile target nuclei this beam energy.
Detailed studies of the azimuthal dependence mean fragment and flow energies in Au+Au Xe+CsI systems are reported as a function incident energy centrality. Comparisons between data model calculations show that values along different directions could be viewed snapshots fireball expansion with exposure times. For same number participating nucleons more transversally elongated participant shapes from heavier system produce less collective transverse energy. Good agreement...
We present experimental data on directed flow in semicentral Au+Au collisions at incident energies from 90 to 400AMeV. For the first time for this energy domain, are presented a transverse momentum differential way. study order Fourier coefficient v1 different particle species and establish gradual change of its patterns as function regions rapidity.Received 1 June 2001DOI:https://doi.org/10.1103/PhysRevC.64.041604©2001 American Physical Society
We present transverse momentum and rapidity spectra of charged pions in central Ru + collisions at 400$A$ 1528$A$ MeV. The data exhibit enhanced production low momenta compared to the expectations from thermal model that includes decay $\Delta(1232)$-resonances pions. Modification $\Delta$-spectral function Coulomb interaction are necessary describe detailed shape spectra. Within framework model, freeze-out radii similar both beam energies. IQMD reproduces shapes pions, but predicted...
We report on the first analysis of directed and elliptic flow with new method Lee--Yang zeros. Experimental data are presented for Ru+Ru reactions at 1.69A GeV measured FOPI detector SIS/GSI. The results obtained several methods, based event-plane reconstruction, zeros, multiparticle cumulants (up to fifth order) applied time SIS energies, compared. They show conclusive evidence that azimuthal correlations between nucleons composite particles this energy largely dominated by anisotropic flow.
During the first run, CMS collected and processed more than 10B data events simulated 15B events. Up to 100k processor cores were used simultaneously 100PB of storage was managed. Each month petabytes moved hundreds users accessed samples. In this document we discuss operational experience from run. We present workflows flows that executed, tools services developed, operations shift models sustain system. Many techniques followed original computing planning, but some reactions difficulties...
Experimental data on charged kaon phase space distributions and strangeness sideward flow measured with the FOPI detector at SIS/GSI are presented. Comparisons made predictions of transport models investigating in-medium kaon-nucleon potential.