A5035832082- Nuclear physics research studies
- Quantum Chromodynamics and Particle Interactions
- Particle physics theoretical and experimental studies
- Atomic and Subatomic Physics Research
- Nuclear Physics and Applications
- Quantum, superfluid, helium dynamics
- Atomic and Molecular Physics
- High-Energy Particle Collisions Research
- Astronomical and nuclear sciences
- Nuclear reactor physics and engineering
- Radiation Detection and Scintillator Technologies
- Dark Matter and Cosmic Phenomena
- Cold Atom Physics and Bose-Einstein Condensates
- Neutrino Physics Research
- Advanced NMR Techniques and Applications
- Particle Detector Development and Performance
- Superconducting Materials and Applications
- Cold Fusion and Nuclear Reactions
- X-ray Spectroscopy and Fluorescence Analysis
- Muon and positron interactions and applications
- Advanced MRI Techniques and Applications
- Particle accelerators and beam dynamics
- Noncommutative and Quantum Gravity Theories
- Advanced Frequency and Time Standards
- Research Data Management Practices
Institute of Nuclear Physics
2014-2024
Institute of Nuclear Physics, Polish Academy of Sciences
2015-2024
Institute of Physics
2006-2022
Jagiellonian University
1999-2022
KU Leuven
2010-2022
Johannes Gutenberg University Mainz
2020-2022
North Carolina State University
2022
Institut Laue-Langevin
2022
Campbell Collaboration
2020
Lawrence Berkeley National Laboratory
2020
We present the result of an experiment to measure electric dipole moment (EDM) neutron at Paul Scherrer Institute using Ramsey's method separated oscillating magnetic fields with ultracold neutrons (UCN). Our measurement stands in long history EDM experiments probing physics violating time reversal invariance. The salient features this were use a Hg-199 co-magnetometer and array optically pumped cesium vapor magnetometers cancel correct for field changes. statistical analysis was performed...
We present for the first time a detailed and comprehensive analysis of experimental results that set current world sensitivity limit on magnitude electric dipole moment (EDM) neutron. have extended enhanced our earlier to include recent developments in understanding effects gravity depolarizing ultracold neutrons (UCN); an improved calculation spectrum neutrons; conservative estimates other possible systematic errors, which are also shown be consistent with more measurements undertaken...
To study fundamental questions of hadron and nuclear physics in interactions antiprotons with nucleons nuclei, the universal PANDA detector will be built. Gluonic excitations, strange charm quarks nucleon structure studies performed unprecedented accuracy thereby allowing high-precision tests strong interaction. The proposed is a state-of-the art internal target at HESR FAIR detection identification neutral charged particles generated within relevant angular energy range. This report...
We report on a search for ultralow-mass axionlike dark matter by analyzing the ratio of spin-precession frequencies stored ultracold neutrons and 199Hg atoms an axion-induced oscillating electric dipole moment neutron axion-wind effect. No signal consistent with is observed axion mass range 10−24≤ma≤10−17 eV. Our null result sets first laboratory constraints coupling to gluons, which improve astrophysical limits up 3 orders magnitude, also improves previous nucleons factor 40.Received 29...
The violation of Baryon Number, $\mathcal{B}$, is an essential ingredient for the preferential creation matter over antimatter needed to account observed baryon asymmetry in universe. However, such a process has yet be experimentally observed. HIBEAM/NNBAR %experiment program proposed two-stage experiment at European Spallation Source (ESS) search number violation. will include high-sensitivity searches processes that violate by one or two units: free neutron-antineutron oscillation...
This document describes the technical layout and expected performance of Straw Tube Tracker (STT), main tracking detector $\overline{P}$ ANDA target spectrometer. The STT encloses a Micro-Vertex-Detector (MVD) for inner is followed in beam direction by set GEM stations. tasks are measurement particle momentum from reconstructed trajectory specific energy loss identification. Dedicated simulations with full analysis studies certain proton-antiproton reactions, identified as being benchmark...
High-precision cross-section data of the deuteron-proton breakup reaction at 130 MeV are presented for 72 kinematically complete configurations. The cover a large region available phase space, divided into systematic grid kinematical variables. They compared with theoretical predictions, in which full dynamics three-nucleon (3N) system is obtained three different ways: realistic nucleon-nucleon (NN) potentials combined model 3N forces (3NF's) or an effective 3NF resulting from explicit...
A clock comparison experiment, analyzing the ratio of spin precession frequencies stored ultracold neutrons and 199Hg atoms, is reported. No daily variation this could be found, from which set an upper limit on Lorentz invariance violating cosmic anisotropy field b perpendicular < 2 x 10(-20) eV (95% C.L.). This first for free neutron. result also interpreted as a direct gravitational dipole moment neutron |gn| 0.3 eV/c2 m spin-dependent interaction with Sun. Analyzing Earth, based previous...
It has been proposed that there could be a mirror copy of the standard model particles, restoring parity symmetry in weak interaction on global level. Oscillations between neutral particle, such as neutron, and its counterpart potentially answer various standing issues physics today. Astrophysical studies terrestrial experiments led by ultracold neutron storage measurements have investigated to mirror-neutron oscillations imposed constraints theoretical parameters. Recently, further analysis...
The $\mathrm{pp}\ensuremath{\rightarrow}\mathrm{pp}{\ensuremath{\eta}}^{\ensuremath{'}}(958)$ reaction has been measured at the cooler synchrotron COSY J\"ulich using internal beam and COSY-11 facility. total cross sections four different excess energies $Q\phantom{\rule{0ex}{0ex}}=\phantom{\rule{0ex}{0ex}}1.5,1.7,2.9$, $4.1\mathrm{MeV}$ have evaluated to be...
High precision cross-section data of the deuteron-proton breakup reaction at 130 MeV deuteron energy are compared with theoretical predictions obtained a coupled-channel extension CD Bonn potential virtual Delta-isobar excitation, without and inclusion long-range Coulomb force. The effect is studied on basis set, extended in this work to about 1500 points by including geometries characterized small polar angles two protons. experimental clearly prefer interaction included. strongest effects...
We performed ultracold neutron storage measurements to search for additional losses due (n) mirror-neutron (n′) oscillations as a function of an applied magnetic field B. In the presence mirror B′, would be maximal B≈B′. did not observe any indication nn′ and placed lower limit on oscillation time τnn′>12.0 s at 95% C.L. B′ between 0 12.5 μT.Received 26 May 2009DOI:https://doi.org/10.1103/PhysRevD.80.032003©2009 American Physical Society
The measurement of the neutron electric dipole moment (nEDM) constrains contribution CP-violating terms within both Standard Model and its extensions. experiment uses ultracold neutrons (UCN) stored in vacuum at room temperature. This technique provided last (and best) limit by RAL/Sussex/ILL collaboration 2006: dn < 2:9 × 10-26 e cm (90% C.L.). We aim to improve experimental sensitivity a factor 5 2-3 years, using an upgrade same apparatus. will take advantage increased density Paul...
High-precision data for vector and tensor analyzing powers the $^{1}\mathrm{H}$$(\mathrm{dP\vec},\mathit{pp})n$ reaction at a 130-MeV deuteron beam energy have been measured over large part of phase space. Theoretical predictions based on various approaches to describe three nucleon ($3N$) system reproduce very well power no three-nucleon force effect is observed these observables. Tensor are also reproduced by calculations in almost whole studied region, but locally certain discrepancies...
We present a magnetometer based on optically pumped Cs atoms that measures the magnitude and direction of 1 μT magnetic field. Multiple circularly polarized laser beams were used to probe free spin precession atoms. The design was optimized for long-time stability achieves scalar resolution better than 300 fT integration times ranging from 80 ms 1000 s. best less reached with 1.6 6 able measure field 10 μrad s up 2000
This documents describes the technical design and expected performance of Barrel DIRC detector for PANDA experiment. The will provide hadronic charged particle identification in polar angle range $22^\circ$ to $140^\circ$ momenta between 0.5 GeV/c 3.5 GeV/c. is based on successful BaBar with several key improvements. system cost were optimized detailed simulations validated full prototypes using beams at GSI CERN. final meets or exceeds PID goal clean $π/K$ separation least 3 standard...
Observables in elastic proton-deuteron scattering are sensitive probes of the nucleon-nucleon interaction and three-nucleon force effects. The present experimental database for this reaction is large, but contains a large discrepancy between data sets differential cross section taken at 135 MeV/nucleon by two research groups. This article reviews background problem presents new Kernfysisch Versneller Instituute (KVI). Differential sections analyzing powers...
High precision vector and tensor analyzing power data of the deuteron-proton elastic scattering at 130 MeV deuteron beam energy have been measured in a large range angles. They are compared with theoretical predictions obtained various approaches: realistic potentials for pure $\mathit{NN}$ interactions, inclusion three-nucleon force, framework chiral perturbation theory. All calculations describe roughly main features distributions, but none them can reproduce all their details. This...
Both components of the transverse polarization electrons (sigmaT1, sigmaT2) emitted in beta-decay polarized, free neutrons have been measured. The T-odd, P-odd correlation coefficient quantifying sigmaT2, perpendicular to neutron and electron momentum, was found be R=0.008+/-0.015+/-0.005. This value is consistent with time reversal invariance significantly improves limits on relative strength imaginary scalar couplings weak interaction. obtained for associated sigmaT1,...
The final analysis of the experiment determining both components transverse polarization electrons ($\sigma_{T_{1}}$, $\sigma_{T_{2}}$) emitted in $\beta$-decay polarized, free neutrons is presented. T-odd, P-odd correlation coefficient quantifying $\sigma_{T_{2}}$, perpendicular to neutron and electron momentum, was found be $R=$ 0.004$\pm0.012\pm$0.005. This value consistent with time reversal invariance, significantly improves earlier result limits on relative strength imaginary scalar...
We report a new limit on possible short range spin-dependent interaction from the precise measurement of ratio Larmor precession frequencies stored ultracold neutrons and $^{199}$Hg atoms confined in same volume. The was performed $\sim$1$\mu$ T vertical magnetic holding field with apparatus searching for permanent electric dipole moment neutron at Paul Scherrer Institute. A coupling between freely precessing polarized spins unpolarized nucleons wall material can be investigated by tiny...