J. Dietrich
A5008745124- Particle physics theoretical and experimental studies
- High-Energy Particle Collisions Research
- Particle Detector Development and Performance
- Quantum Chromodynamics and Particle Interactions
- Dark Matter and Cosmic Phenomena
- Cosmology and Gravitation Theories
- Computational Physics and Python Applications
- Particle Accelerators and Free-Electron Lasers
- Neutrino Physics Research
- Particle accelerators and beam dynamics
- Superconducting Materials and Applications
- Black Holes and Theoretical Physics
- Astrophysics and Cosmic Phenomena
- Distributed and Parallel Computing Systems
- Nuclear Physics and Applications
- Radiation Detection and Scintillator Technologies
- Radiation Therapy and Dosimetry
- X-ray Spectroscopy and Fluorescence Analysis
- Magnetic confinement fusion research
- Atomic and Molecular Physics
- Medical Imaging Techniques and Applications
- Nuclear physics research studies
- Muon and positron interactions and applications
- Gyrotron and Vacuum Electronics Research
- Atomic and Subatomic Physics Research
Humboldt-Universität zu Berlin
2015-2024
Northern Illinois University
2016-2023
The University of Adelaide
2013-2022
University of Freiburg
2008-2020
Institute for High Energy Physics
2019-2020
University of Michigan–Ann Arbor
2019
Forschungszentrum Jülich
2002-2018
University of Belgrade
2014-2017
LIP - Laboratory of Instrumentation and Experimental Particle Physics
2014-2016
Universidad de Granada
2009-2016
This paper describes a time-marking system that enables measurement of the in-plane (horizontal) polarization 0.97-GeV/c deuteron beam circulating in Cooler Synchrotron (COSY) at Forschungszentrum J\"ulich. The clock time each polarimeter event is used to unfold 120-kHz spin precession and assign events bins according direction horizontal polarization. After accumulation for one or more seconds, down-up scattering asymmetry can be calculated matched sinusoidal function whose magnitude...
This paper reports results on simultaneous measurements of the reaction channels pp $ \rightarrow$ pK + \Lambda$ and \Sigma^{0}_{}$ at excess energies 204, 239, 284MeV ( 127, 162, 207MeV . Total differential cross-sections are given for both reactions. It is concluded from measured total that high-energy limit cross-section ratio almost reached an energy only about 200MeV. From distributions observed in overall CMS as well Jackson helicity frames, a significant contribution interfering...
A prototype module for an International Linear Collider (ILC) detector was built, installed, and tested between 2006 2009 at CERN Fermilab as part of the CALICE test beam program, in order to study possibilities extending energy sampling behind a hadronic calorimeter providing muon tracking. The "tail catcher/muon tracker" (TCMT) is composed 320 extruded scintillator strips (dimensions 1000 mm x 50 5 mm) packaged 16 one-meter square planes interleaved steel plates. were read out with...
The reaction $ pp\to pp\bf ω$ was investigated with the TOF spectrometer, which is an external experiment at accelerator COSY (Forschungszentrum Jülich, Germany). Total as well differential cross sections were determined excess energy of $93 MeV$ ($p_{beam}=2950 MeV/c$). Using total section $(9.0\pm 0.7 \pm1.1) μb$ for ppω$ here and existing data $pp\to ϕ$, ratio $\mathcal{R}_{ϕ/ω}=σ_ϕ/σ_ω$ turns out to be significantly larger than expected by Okubo-Zweig-Iizuka (OZI) rule. uncertainty this...
New measurements are reported for the time dependence of vertical polarization a $0.97\text{ }\text{ }\mathrm{GeV}/\mathrm{c}$ deuteron beam circulating in storage ring and perturbed by an rf solenoid. The is cooler synchrotron (COSY) located at Forschungszentrum J\"ulich. was measured continuously using 1.5 cm thick carbon target edge scintillators EDDA detector. An solenoid mounted on used to generate fields near frequency $1\ensuremath{-}G\ensuremath{\gamma}$ spin resonance. Measurements...
This paper reports results from a study of the reaction pp → pK0Σ+ at beam momenta p = 2950, 3059, and 3200 MeV/c (excess energies ε 126, 161, 206 MeV. Total cross-sections were determined for all energies; set differential (Dalitz plots; invariant-mass spectra two-body subsystems; angular distributions final-state particles; in helicity Jackson frames) are presented 161 The total proportional to volume available three-body phase space indicating that transition matrix element does not...
${K}^{+}$-meson production in $\mathrm{pA}$ ( $A\phantom{\rule{0ex}{0ex}}=\phantom{\rule{0ex}{0ex}}\mathrm{C},\mathrm{Cu},\mathrm{Au}$) collisions has been studied using the ANKE spectrometer at an internal target position of COSY-J\"ulich accelerator. The complete momentum spectrum kaons emitted forward angles, $\ensuremath{\vartheta}\ensuremath{\le}12\ifmmode^\circ\else\textdegree\fi{}$, measured for a beam energy ${T}_{p}\phantom{\rule{0ex}{0ex}}=\phantom{\rule{0ex}{0ex}}1.0\mathrm{GeV}$,...
We propose to use an internal polarized hydrogen storage cell gas target in the AD ring determine for first time two total spin-dependent pbar-p cross sections sigma_1 and sigma_2 at antiproton beam energies range from 50 450 MeV. The data obtained are of interest by themselves general theory interactions since they will provide a experimental constraint spin-spin dependence nucleon-antinucleon potential energy interest. In addition, measurements polarization buildup stored antiprotons...
We have searched for particle-bound $^{26}\mathrm{O}$ and $^{28}\mathrm{F}$ isotopes in the reaction products of secondary $^{27}\mathrm{F}$ $^{29}\mathrm{Ne}$ beams, respectively. No events been observed. Upper limits 3.3 mb 1.2 respective production cross sections by one p-stripping reactions are established. Since case $^{28}\mathrm{F}$, this upper limit is sufficiently small compared to common estimates, we conclude that most likely unbound. For $^{26}\mathrm{O}$, our result not...
Results of experimental studies the electron cooling a proton beam at COSY (Juelich, Germany) are presented. Intensity is limited by two general effects: particle loss directly after injection and development instability in deep cooled ion beam. investigations performed during last years presented this report comparison with previous results from HIMAC (Chiba, Japan) CELSIUS (Uppsala, Sweden) LEAR (CERN). Methods suppression, which allow increasing intensity, described. This work supported...
The high-energy storage ring (HESR) of the international facility for antiproton and ion research (FAIR) at GSI in Darmstadt is dedicated to strong interaction studies with antiprotons momentum range from 1.5 15 GeV/c. Powerful phase-space cooling needed reach demanding experimental requirements terms luminosity beam quality. Status details technical planning including cryogenic concept will be presented.