K. Wiśniewski
A5019442104- Luminescence Properties of Advanced Materials
- High-Energy Particle Collisions Research
- Glass properties and applications
- Quantum Chromodynamics and Particle Interactions
- Solid State Laser Technologies
- Particle physics theoretical and experimental studies
- Nuclear physics research studies
- Photorefractive and Nonlinear Optics
- Nuclear reactor physics and engineering
- Perovskite Materials and Applications
- Quantum Dots Synthesis And Properties
- Radiation Detection and Scintillator Technologies
- Conducting polymers and applications
- Optical properties and cooling technologies in crystalline materials
- Chalcogenide Semiconductor Thin Films
- Solid-state spectroscopy and crystallography
- Plant Stress Responses and Tolerance
- ZnO doping and properties
- Photochemistry and Electron Transfer Studies
- Nuclear Physics and Applications
- Particle Detector Development and Performance
- Inorganic Fluorides and Related Compounds
- GaN-based semiconductor devices and materials
- Astronomical and nuclear sciences
- Nonlinear Optical Materials Studies
Institute of Physics
2014-2025
Nicolaus Copernicus University
2016-2025
Collegium Medicum in Bydgoszcz
2017-2022
University of Warsaw
2003-2019
Rudjer Boskovic Institute
2006-2018
Heidelberg University
2005-2016
Warsaw University of Life Sciences
2016
GSI Helmholtz Centre for Heavy Ion Research
1997-2014
Joint Institute for Nuclear Research
2014
Goethe University Frankfurt
2014
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...
The research considered in this publication aims to contribute developing perovskite-based technologies by conducting basic on perovskite materials. materials described the paper are thin films of hybrid MEAPbI3 made using PVco-D method three different compositions—perovskite samples differ percentage organic methylammonium and inorganic iodide parts. This discusses influence composition layer its structural optical properties temperature environment film properties. To answer these...
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.
The K0 meson production by π− mesons of 1.15 GeV/c momentum on C, Al, Cu, Sn, and Pb nuclear targets was measured with the FOPI spectrometer at Schwer-Ionen-Synchrotron accelerator GSI. Inclusive cross sections distributions are compared to scaled elementary predictions theoretical models describing in-medium kaons. data represent a new reference for those models, which widely used interpretation strangeness in heavy-ion collisions. presented results demonstrate sensitivity kaon reaction...
In this work, a novel experimental investigation of photoluminescence properties Znq
Changes in proteolytic activities response to water deficiency have been investigated ten genotypes of spring wheat (Triticum aestivum L.) differing deficit stress and ability acclimate. To determine subcellular localization the type proteases, mesophyll protoplasts isolated from leaves were purified. Proteolytic assayed using azocasein case vacuolar proteinases at pH 5.0 125I‐lysozyme extravacuolar ATP‐dependent 8.2. activity was found be confined fraction while azocaseinolytic vacuoles....
New results concerning the production of neutral strange particles, ${K}^{0}$ and \ensuremath{\Lambda} in Ni+Ni collisions at $1.93A$ GeV, measured with FOPI detector GSI Darmstadt, are presented. Rapidity density distributions Boltzmann slope parameter nearly full phase space reaction. The observables compared to existing ${K}^{+}$ proton data. While data agree previously reported measurements, show a different behavior relative that protons. strangeness balance yield per participating...
The excited state absorption (ESA) spectra of ZBLAN glass activated by trivalent holmium ions have been measured in a wide spectral range (550–1750 nm) and simulated using such theoretical tools as the Judd–Ofelt formalism McCumber theory stimulated emission. We also propose systematic approach for prediction various types up-conversion mechanisms given type material. Experimental results on ESA processes ZBLAN:Ho3+ under red infrared laser excitation, which confirm analysis, are presented....