L. Rehnisch
A5105657995- 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
- Neutrino Physics Research
- Radiation Detection and Scintillator Technologies
- Astrophysics and Cosmic Phenomena
- Black Holes and Theoretical Physics
- Nuclear physics research studies
- Integrated Circuits and Semiconductor Failure Analysis
- Structural Analysis of Composite Materials
- Particle accelerators and beam dynamics
- Advanced Data Storage Technologies
- Distributed and Parallel Computing Systems
- 3D IC and TSV technologies
- Superconducting Materials and Applications
- Advanced MEMS and NEMS Technologies
- Advancements in Photolithography Techniques
- Advanced Semiconductor Detectors and Materials
- Semiconductor materials and devices
- Silicon and Solar Cell Technologies
- Statistical Distribution Estimation and Applications
Humboldt-Universität zu Berlin
2014-2023
The University of Adelaide
2014-2020
Institute for High Energy Physics
2019-2020
University of Liverpool
2016-2020
University of California, Santa Cruz
2017-2019
Boğaziçi University
2018
Slovak Academy of Sciences
2018
Institute of Physics of the Slovak Academy of Sciences
2018
Goethe University Frankfurt
2012-2017
University of Göttingen
2015
We report on the first measurement of $p\mathrm{\ensuremath{\Lambda}}$ and $pp$ correlations via femtoscopy method in $p$ + Nb reactions at $\sqrt{{s}_{\mathit{NN}}}=3.18\phantom{\rule{0.28em}{0ex}}\mathrm{GeV}$, studied with High Acceptance Di-Electron Spectrometer (HADES). By comparing experimental correlation function to model calculations, a source size for pairs...
For the HL-LHC, ATLAS [1] will install a new all-silicon tracking system. The strip part be comprised of five barrel layers and seven end cap disks on each side. detectors connected to highly integrated, low mass front-end electronic hybrids with custom-made ASICs in 130 nm CMOS technology. flexible four layer copper polyimide constructions. They designed populated at universities involved, while PCBs produced industry. This paper describes evolution hybrid designs for cap, discusses their...
The inclusive production of {\Lambda} hyperons in proton-proton collisions at $\sqrt{s}$ = 3.18 GeV was measured with HADES the GSI Helmholtzzentrum f\"ur Schwerionenforschung Darmstadt. experimental data are compared to a data-based model for individual exclusive channels same reaction. contributions intermediate resonances such as {\Sigma}(1385), {\Delta}++ or N* considered detail. In particular, result partial wave analysis is accounted abundant pK$^+${\Lambda} final state. Model and show...
The production of $\Sigma^{0}$ baryons in the nuclear reaction p (3.5 GeV) + Nb (corresponding to $\sqrt{s_{NN}}=3.18$ is studied with detector set-up HADES at GSI, Darmstadt. $\Sigma^{0}$s were identified via decay $\Sigma^{0} \rightarrow \Lambda \gamma$ subsequent decays $\Lambda \pi^{-}$ coincidence a $e^{+}e^{-}$ pair from either external ($\gamma e^{+} e^{-}$) or internal (Dalitz $\gamma^{*}\rightarrow gamma conversions. differential $\Sigma^0$ cross section integrated over acceptance,...
This work presents the analysis of performance RPC ToF wall HADES, located at GSI Helmholtzzentrum für Schwerionenforschung, Darmstadt. The behavior detector is studied in Au+Au collisions 1.23 AGeV. A main characteristic that all active areas were designed to be electrically shielded order operate high occupancies chambers. Here we show achieved regarding efficiency and timing capabilities different this special design after applied offline corrections data. Also stability intrinsic time...
The HADES data from p+Nb collisions at center of mass energy $\sqrt{s_{NN}}$= 3.2 GeV are analyzed by employing a statistical model. Accounting for the identified hadrons $π^0$, $η$, $Λ$, $K^{0}_{s}$, $ω$ allows surprisingly good description their abundances with parameters $T_{chem}=(99\pm11)$ MeV and $μ_{b}=(619\pm34)$ MeV, which fits well in chemical freeze-out systematics found heavy-ion collisions. In supplement we reanalyze our previous Ar+KCl 2.6 an updated version We address...
The Phase-II upgrade of the ATLAS detector for High Luminosity Large Hadron Collider (HL-LHC) includes replacement current Inner Detector with an all-silicon tracker consisting pixel and strip detectors. layout requires construction 20,000 modules sensor, circuit boards readout chips, which are connected mechanically using adhesives. adhesive used initially between chips board is a silver epoxy glue as was in SemiConductor Tracker (SCT). However, this has several disadvantages, motivated...
Hadron modifications in nuclear matter are discussed connection to chiral symmetry restoration and/or hadronic many body effects. Experiments with photon, proton and heavy ion beams used probe properties of hadrons embedded at different temperatures densities. Most the information has been gathered for light vector mesons ρ ω ø. HADES is a second generation experiment operating GSI main aim study in-medium by means dielectron production SIS18/Bevelac energy range. Large acceptance excellent...
We present and discuss recent experimental activities of the HADES collaboration on open hidden strangeness production close or below elementary NN threshold. Special emphasis is put feed-down from ϕ mesons to antikaons, presence Ξ- excess in cold nuclear matter comparison statistical model rates p+p data. The implications for interpretation heavy-ion data are discussed as well.
The High Luminosity Upgrade of the LHC will require replacement Inner Detector ATLAS with Tracker (ITk) in order to cope higher radiation levels and track densities. Prototype silicon strip detector modules are currently developed their performance is studied both particle test beams X-ray beams. In previous beam measurements prototype modules, response sensors has been detailed scans across individual sensor strips. These found instances strips collecting charge areas on deviating from...
A high-statistic data sample of Ar(1.76 AGeV)+KCl events recorded with HADES is used to search for a hypertriton signal. An upper production limit per centrality-triggered event $1.04$ x $10^{-3}$ on the $3σ$ level derived. Comparing this value number successfully reconstructed $Λ$ hyperons allows determine an ratio $N_{_Λ^3H}/N_Λ$, which confronted statistical and coalescence-type model calculations.
We present the results of two-pion production in tagged quasi-free np collisions at a deutron incident beam energy 1.25 GeV/c measured with High-Acceptance Di-Electron Spectrometer (HADES) installed GSI. The specific acceptance HADES allowed for first time to obtain high-precision data on π+π− and π−π0 region corresponding large transverse momenta secondary particles. obtained differential cross section provide strong constraints mechanisms various baryon resonance contributions (∆∆,...
Many QCD based and phenomenological models predict changes of hadron properties in a strongly interacting environment. The results these differ significantly the experimental determination nuclear matter is essential. In this paper we present review selected physics obtained at GSI Helmholtzzentrum für Schwerionenforschung GmbH by HADES (High-Acceptance Di-Electron Spectrometer). e+e− pair emission measured for proton heavy-ion induced collisions reported together with on strangeness...
New results on the differential cross section in deuteron-proton elastic scattering are obtained at deuteron kinetic energy of 2.5 GeV with HADES spectrometer. The angular range 69° – 125° center mass system is covered. compared relativistic multiple model calculation using CD-Bonn wave function. data fixed angles c.m. qualitative agreement constituent counting rules prediction.
Following our recent letter [1] on inclusive e + -pair production in proton induced reactions at E kin = 3.5 GeV the nucleus Nb, we present here addition transverse and rapidity distributions for various -invariant mass bins compare them to reference data measured p+p reactions.
This contribution aims to give a basic overview of the latest results regarding production resonances in different collision systems. The were extracted from experimental data collected with HADES that is multipurpose detector located at GSI Helmholtzzentrum, Darmstadt. main points discussed here are: properties strange Λ(1405) and Σ(1385), role Δ’s as source pions final state, dynamics reflected form differential cross sections, ϕ meson for K− particles.
The High Acceptance DiElectron Spectrometer HADES [1] is installed at the Helmholtzzentrum für Schwerionenforschung (GSI) accelerator facility in Darmstadt. It investigates dielectron emission and strangeness production 1-3 AGeV regime. A recent experiment series focusses on medium-modifications of light vector mesons cold nuclear matter. In two runs, p+p p+Nb reactions were investigated 3.5 GeV beam energy; about 9·109 events have been registered. contrast to other experiments high...
Recent results obtained with the HADES experimental set-up at GSI are presented a focus on dielectron production and strangeness in pp quasi-free np reactions. Perspectives related to very recent experiment using pion beam also discussed.
While the tracking detectors of ATLAS and CMS experiments have shown excellent performance in Run 1 LHC data taking, are expected to continue do so during operation at design luminosity, both will exchange their systems when is upgraded high-luminosity (HL-LHC) around year 2024. The new need operate an environment which hit densities radiation damage be about order magnitude higher than today. In addition, trackers contribute first level trigger maintain a high data-taking efficiency for...