A5037806552- Particle physics theoretical and experimental studies
- High-Energy Particle Collisions Research
- Quantum Chromodynamics and Particle Interactions
- Particle Detector Development and Performance
- Medical Imaging Techniques and Applications
- Radiation Detection and Scintillator Technologies
- Radiomics and Machine Learning in Medical Imaging
- Muon and positron interactions and applications
- Dark Matter and Cosmic Phenomena
- Advanced X-ray and CT Imaging
- AI in cancer detection
- Additive Manufacturing and 3D Printing Technologies
- Nuclear physics research studies
- Nuclear reactor physics and engineering
- CCD and CMOS Imaging Sensors
- Cell Image Analysis Techniques
- Radiopharmaceutical Chemistry and Applications
- Stochastic processes and statistical mechanics
- Particle Accelerators and Free-Electron Lasers
- 3D IC and TSV technologies
- Injection Molding Process and Properties
- Radiation Therapy and Dosimetry
- Superconducting Materials and Applications
- Digital Imaging for Blood Diseases
- Cancer Immunotherapy and Biomarkers
University of Bern
2024-2025
University Hospital of Bern
2024-2025
Institute of Physics
2019-2024
University of Houston - Clear Lake
2024
Jagiellonian University
2019-2024
Warsaw University of Technology
2024
LIP - Laboratory of Instrumentation and Experimental Particle Physics
2021-2022
Institute of Nuclear Physics, Polish Academy of Sciences
2019
We present an analysis of proton number fluctuations in $\sqrt{s_{NN}}$ = 2.4 GeV Au+Au collisions measured with the High-Acceptance DiElectron Spectrometer (HADES) at GSI. With help extensive detector simulations done IQMD transport model events including nuclear clusters, various nuisance effects influencing observed cumulants have been investigated. Acceptance and efficiency corrections applied as a function fine grained rapidity transverse momentum bins, well considering local track...
Flow coefficients $v_{n}$ of the orders $n = 1 - 6$ are measured with High-Acceptance DiElectron Spectrometer (HADES) at GSI for protons, deuterons and tritons as a function centrality, transverse momentum rapidity in Au+Au collisions $\sqrt{s_{NN}} 2.4$ GeV. Combining information from flow all allows to construct first time, collision energies few GeV, multi-differential picture angular emission pattern these particles. It reflects complicated interplay between effect central fireball...
The global polarization of {\Lambda} hyperons along the total orbital angular momentum a relativistic heavy-ion collision is presented based on high statistics data samples collected in Au+Au collisions at \sqrt{s_{NN}} = 2.4 GeV and Ag+Ag 2.55 with High-Acceptance Di-Electron Spectrometer (HADES) GSI, Darmstadt. This first measurement below strangeness production threshold nucleon-nucleon collisions. Results are reported as function centrality well hyperon transverse (p_T) rapidity (y_{CM})...
Abstract High-precision measurements of flow coefficients $$v_{n}$$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:msub> <mml:mi>v</mml:mi> <mml:mi>n</mml:mi> </mml:msub> </mml:math> ( $$n = 1 - 4$$ <mml:mrow> <mml:mo>=</mml:mo> <mml:mn>1</mml:mn> <mml:mo>-</mml:mo> <mml:mn>4</mml:mn> </mml:mrow> ) for protons, deuterons and tritons relative to the first-order spectator plane have been performed in Au+Au collisions at $$\sqrt{s_{_{{\text {NN}}}}}= 2.4$$ <mml:msqrt>...
This paper summarises a comprehensive Monte Carlo simulation study for precision resonance energy scan measurements. Apart from the proof of principle natural width and line shape measurements very narrow resonances with PANDA, achievable sensitivities are quantified concrete example charmonium-like X(3872) state discussed to be exotic, larger parameter space various assumed signal cross-sections, input widths luminosity combinations. PANDA is only experiment that will able perform scans...
Purpose: Measuring the ortho-positronium (oPs) lifetime in human tissue bears potential of adding clinically relevant information about microenvironment to conventional positron emission tomography (PET). Through phantom measurements, we investigate voxel-wise measurement oPs using a commercial long-axial field-of-view (LAFOV) PET scanner. Methods: We prepared four samples with mixtures Amberlite XAD4, porous polymeric adsorbent, and water added between 1.12 MBq 1.44 $^{124}$I. The were...
We present the first observation of K^{-} and ϕ absorption within nuclear matter by means π^{-}-induced reactions on C W targets at an incident beam momentum 1.7 GeV/c studied with HADES SIS18/GSI. The double ratio (K^{-}/K^{+})_{W}/(K^{-}/K^{+})_{C} is found to be 0.319±0.009(stat)_{-0.012}^{+0.014}(syst) indicating a larger in heavier as compared lighter ones. measured ϕ/K^{-} ratios π^{-}+C π^{-}+W acceptance are equal 0.55±0.04(stat)_{-0.07}^{+0.06}(syst)...
A feasibility study has been performed in order to investigate the performance of HADES detector measure electromagnetic decays hyperon resonances $\Sigma(1385)^0$, $\Lambda(1405)$ and $\Lambda{\Lambda}(1520)$ as well production double strange baryon systems $\Xi^-$ $\Lambda\Lambda$ p+p reactions at a beam kinetic energy 4.5 GeV. The existing will be upgraded by new Forward Detector, which extends acceptance into range polar angles that plays crucial role for these investigations. analysis...
The antiproton experiment PANDA at FAIR is designed to bring hadron physics a new level in terms of scope, precision and accuracy. In this work, its unique capability for studies hyperons outlined. We discuss ground-state as diagnostic tools study non-perturbative aspects the strong interaction, fundamental symmetries. New simulation have been carried out two benchmark hyperon-antihyperon production channels: $\bar{p}p \to \bar{\Lambda}\Lambda$ \bar{\Xi}^+\Xi^-$. results, presented detail...
We present high-statistic data on charged pion emission from Au+Au collisions at $\sqrt{s_{\rm{NN}}}$ = 2.4 GeV (corresponding to $E_{beam}$ 1.23 A GeV) in four centrality classes the range 0 - 40$\%$ of most central collisions. The are analyzed as a function transverse momentum, mass, rapidity, and polar angle. Pion multiplicity per participating nucleon decreases moderately with increasing centrality. angular distributions found be non-isotropic even for event class. Our results fit well...
Pion-induced reactions provide unique opportunities for an unambiguous description of baryonic resonances and their coupling channels by means a partial-wave analysis. Using the secondary pion beam at SIS18, two-pion production in second resonance region has been investigated to unravel role $N(1520){\frac{3}{2}}^{\ensuremath{-}}$resonance intermediate $\ensuremath{\rho}$-meson production. Results on exclusive with one (${\ensuremath{\pi}}^{\ensuremath{-}}p$) two pions...
The Facility for Antiproton and Ion Research (FAIR) in Darmstadt, Germany, provides unique possibilities a new generation of hadron-, nuclear- atomic physics experiments. future antiProton ANnihilations at DArmstadt (PANDA or $\overline{\rm P}$ANDA) experiment FAIR will offer broad programme, covering different aspects the strong interaction. Understanding latter non-perturbative regime remains one greatest challenges contemporary physics. antiproton-nucleon interaction studied with PANDA...
Abstract Fiber-reinforced thermoplastic (FRTP) composites have gained popularity within the aerospace and automotive industries due to their high specific strength-to-weight ratio compared metallic counterparts. State-of-the-art composite manufacturing technology such as compression molding (CM) is one of most used techniques fabricate FRTPs. While force allows consolidation matrix fibers, orientation fibers random matrix. Random short yields relatively lower mechanical properties. On other...
The study of baryon excitation spectra provides insight into the inner structure baryons. So far, most world-wide efforts have been directed towards $N^*$ and $\Delta$ spectroscopy. Nevertheless, double triple strange spectrum independent information to spectra. future antiproton experiment PANDA will provide direct access final states containing a $\bar{\Xi}\Xi$ pair, for which production cross sections up $\mu$b are expected in $\bar{p}p$ reactions. With luminosity...
Large-scale physics experiments running at high interaction rates place a demand on the data acquisition system (DAQ) responsible for transporting from detector to storage. The antiProton ANihilation DArmstadt (PANDA) facility anti-proton and ion research (FAIR) is one such experiment of future that will not use fixed hardware triggers; instead, event selection based real-time feature extraction, filtering, high-level correlations. A firmware framework processing has been developed tested...
In this letter we report the first multi-differential measurement of correlated pion-proton pairs from 2 billion Au+Au collisions at sNN=2.42 GeV collected with HADES. energy regime population Δ(1232) resonances plays an important role in way is distributed between intrinsic excitation and kinetic hadrons fireball. The triple differential d3N/dMπ±pdpTdy distributions π±p have been determined by subtracting πp combinatorial background using iterative method. invariant-mass mass region show...
Radiative transition of an excited baryon to a nucleon with emission virtual massive photon converting dielectron pair (Dalitz decays) provides important information about baryon-photon coupling at low q 2 in timelike region. A prominent enhancement the respective electromagnetic Form Factors (etFF) near vector mesons ρ/ω poles has been predicted by various calculations reflecting strong baryon-vector meson couplings. The understanding these couplings is also primary importance for...
Abstract. The study investigates hyperons in dense matter, addressing the “hyperon puzzle" and its implications for neutron stars. Utilizing femtoscopy Ag-Ag heavy-ion collisions at 1.58 AGeV within HADES experiment, analysis focuses on Λ (uds) strange quarks. By reconstructing Lambdas through → π − + p decay, measures - correlation function, revealing a distinct peak providing valuable insights into strong interaction parameters. initial exploration of nucleon-hyperon (N-Y) femtoscopic...
Purpose: The lifetime of orthopositronium (oPs), a spin triplet an electron and positron, depends on the molecular structure surrounding tissue. Therefore, measuring oPs could in principle provide diagnostic information about tissue microenvironment that goes beyond standard positron emission tomography (PET) imaging. This study demonstrates vivo measurement is feasible with commercial long axial field-of-view (LAFOV) PET/CT scanner. Methods: Three subjects received dose 148.8 MBq...