C. Scheidenberger
A5027445319- Nuclear physics research studies
- Nuclear Physics and Applications
- Atomic and Molecular Physics
- Astronomical and nuclear sciences
- Quantum Chromodynamics and Particle Interactions
- Nuclear reactor physics and engineering
- X-ray Spectroscopy and Fluorescence Analysis
- Mass Spectrometry Techniques and Applications
- Particle accelerators and beam dynamics
- Particle physics theoretical and experimental studies
- Ion-surface interactions and analysis
- Radiation Therapy and Dosimetry
- Advanced Chemical Physics Studies
- Radiation Detection and Scintillator Technologies
- Neutrino Physics Research
- Atomic and Subatomic Physics Research
- Particle Accelerators and Free-Electron Lasers
- Advanced NMR Techniques and Applications
- High-Energy Particle Collisions Research
- Astro and Planetary Science
- Isotope Analysis in Ecology
- Crystallography and Radiation Phenomena
- Radioactive contamination and transfer
- Gamma-ray bursts and supernovae
- Superconducting Materials and Applications
GSI Helmholtz Centre for Heavy Ion Research
2016-2025
Justus-Liebig-Universität Gießen
2016-2025
Institut für Hochschulforschung
2021-2025
Helmholtz Institute Mainz
2024
Johannes Gutenberg University Mainz
2024
Saha Institute of Nuclear Physics
2024
Ludwig-Maximilians-Universität München
2024
University of Surrey
2010-2024
TRIUMF
2022-2023
University of British Columbia
2022-2023
The three-body breakup ${}^{6}{\stackrel{\ensuremath{\rightarrow}}{\mathrm{He}}}^{4}\mathrm{He}+n+n$ is studied experimentally, using a secondary ${}^{6}\mathrm{He}$ ion beam of 240 MeV/nucleon incident on carbon and lead targets. Integrated cross sections for one- two-neutron knockout differential $d\ensuremath{\sigma}{/dE}^{*}$ $d\ensuremath{\sigma}/d\ensuremath{\vartheta}$ inelastic nuclear or electromagnetic excitations into the continuum are presented. $E$1-strength distribution deduced...
The masses of six neutron-deficient rare holmium and thulium isotopes close to the proton drip line were determined with SHIPTRAP Penning trap mass spectrometer. For first time proton-unbound 144,145Ho 147,148Tm directly measured. separation energies derived from measured values compared predictions formulas. new are used determine location for more accurately.Received 26 October 2006DOI:https://doi.org/10.1103/PhysRevLett.100.012501©2008 American Physical Society
The first measurement of the momentum distribution for one-neutron removal from $^{24}\mathrm{O}$ at $920A\text{ }\text{ }\mathrm{MeV}$ performed GSI, Darmstadt is reported. observed has a width (FWHM) $99\ifmmode\pm\else\textpm\fi{}4\text{ }\mathrm{MeV}/c$ in projectile rest frame and cross section $63\ifmmode\pm\else\textpm\fi{}7\text{ }\mathrm{mb}$. results are well explained with nearly pure $2{s}_{1/2}$ neutron spectroscopic factor $1.74\ifmmode\pm\else\textpm\fi{}0.19$ within eikonal...
With a new detector setup and the high-resolution performance of fragment separator FRS at GSI we discovered 57 isotopes in atomic number range 60$\leq Z \leq 78$: \nuc{159-161}{Nb}, \nuc{160-163}{Pm}, \nuc{163-166}Sm, \nuc{167-168}{Eu}, \nuc{167-171}{Gd}, \nuc{169-171}{Tb}, \nuc{171-174}{Dy}, \nuc{173-176}{Ho}, \nuc{176-178}{Er}, \nuc{178-181}{Tm}, \nuc{183-185}{Yb}, \nuc{187-188}{Lu}, \nuc{191}{Hf}, \nuc{193-194}{Ta}, \nuc{196-197}{W}, \nuc{199-200}{Re}, \nuc{201-203}{Os},...
Quantum-mechanical shell effects are expected to strongly enhance nuclear binding on an "island of stability" superheavy elements. The predicted center at proton number $Z=114,120$, or $126$ and neutron $N=184$ has been substantiated by the recent synthesis new elements up $Z=118$. However location extension island stability remain vague. High-precision mass spectrometry allows direct measurement energies thus determination strength effects. Here, we present such measurements for nobelium...
A precision mass investigation of the neutron-rich titanium isotopes $^{51\ensuremath{-}55}\mathrm{Ti}$ was performed at TRIUMF's Ion Trap for Atomic and Nuclear science (TITAN). The range measurements covers $N=32$ shell closure, overall uncertainties $^{52\ensuremath{-}55}\mathrm{Ti}$ values were significantly reduced. Our results conclusively establish existence weak effect $N=32$, narrowing down abrupt onset this closure. data compared with state-of-the-art ab initio model calculations...
Proton radii of ^{12-19}C densities derived from first accurate charge changing cross section measurements at 900A MeV with a carbon target are reported. A thick neutron surface evolves ∼0.5 fm in ^{15}C to ∼1 ^{19}C. The halo radius ^{19}C is found be 6.4±0.7 as large ^{11}Li. Ab initio calculations based on chiral nucleon-nucleon and three-nucleon forces reproduce the well.
We report the measurement of reaction cross sections (${\ensuremath{\sigma}}_{R}^{\mathrm{ex}}$) $^{27,29}\mathrm{F}$ with a carbon target at RIKEN. The unexpectedly large ${\ensuremath{\sigma}}_{R}^{\mathrm{ex}}$ and derived matter radius identify $^{29}\mathrm{F}$ as heaviest two-neutron Borromean halo to date. is attributed neutrons occupying $2{p}_{3/2}$ orbital, thereby vanishing shell closure associated neutron number $N=20$. results are explained by state-of-the-art model...
The dipole response of stable and unstable neutron-rich oxygen nuclei masses A = 17 to 22 has been investigated experimentally utilizing electromagnetic excitation in heavy-ion collisions at beam energies about 600 MeV/nucleon. kinematically complete measurement the neutron decay channel inelastic scattering secondary projectiles from a Pb target was performed. Differential cross sections d sigma/dE were derived up 30 MeV energy. In contrast nuclei, deduced strength distribution appears be...
Peripheral fragmentation of a 287 MeV/nucleon beam the halo nucleus ${}^{11}\mathrm{Li}$ incident on carbon target has been studied in fragment-neutron coincidence experiment. The momentum distribution ${}^{10}\mathrm{Li}$ fragments gives access to removed neutron ${}^{11}\mathrm{Li}$. From shape distribution, $({1s}_{1/2}{)}^{2}$ contribution mixture and $({0p}_{1/2}{)}^{2}$ components ground-state wave function was determined be $(45\ifmmode\pm\else\textpm\fi{}10)%$. angular correlation...