A5016486913- Nuclear physics research studies
- Astronomical and nuclear sciences
- Advanced Chemical Physics Studies
- Atomic and Molecular Physics
- Nuclear Physics and Applications
- Radiation Detection and Scintillator Technologies
- Geomagnetism and Paleomagnetism Studies
- Biomedical and Engineering Education
- NMR spectroscopy and applications
- Enzyme Structure and Function
- High-Energy Particle Collisions Research
- Mass Spectrometry Techniques and Applications
- Advances in Oncology and Radiotherapy
- Advanced NMR Techniques and Applications
- Quantum Chromodynamics and Particle Interactions
- Atomic and Subatomic Physics Research
- X-ray Spectroscopy and Fluorescence Analysis
- Radioactive Decay and Measurement Techniques
- Advanced MRI Techniques and Applications
University of Cologne
2017-2022
Background: The semimagic Sn ($Z=50$) isotopes have been subject to many nuclear-structure studies. Signatures of shape coexistence observed and attributed two-proton--two-hole (2p-2h) excitations across the $Z=50$ shell closure. In addition, low-lying features which effectively constrained theoretical models in past. One example are so-called quadrupole-octupole coupled states (QOC) caused by coupling collective quadrupole octupole phonons.Purpose: Proton-scattering experiments followed...
The half-life of the ${4}_{2}^{+}$ state $2\mathrm{p}\ensuremath{-}2\mathrm{h}$ proton intruder band $^{116}\mathrm{Sn}$ has been measured with fast-timing technique. lifetime ${T}_{1/2}=29(10)$ ps leads to a transition probability $B\left(E2;{4}_{2}^{+}\ensuremath{\rightarrow}{2}_{2}^{+}\right)=40(13)$ Weisskopf units, which is in very good agreement large $B\left(E2;{2}_{2}^{+}\ensuremath{\rightarrow}{0}_{3}^{+}\right)$ value previously and provides strong support for ${0}_{3}^{+}$ as...
Background: The $Z=52$ nuclei $^{128}\mathrm{Te}$ and $^{130}\mathrm{Te}$ are interesting candidates to study nuclear-structure properties close the $Z=50$ shell. knowledge of lifetimes low-lying states in those is still scarce.Purpose: goal present work extend experimental database nuclear level low-spin $^{130}\mathrm{Te}$.Methods: Nuclear were determined by means Doppler-shift attenuation method (DSAM) using $p\ensuremath{-}\ensuremath{\gamma}$ coincidences measured at SONIC@HORUS setup...
On
Abstract This paper illustrates the principle of Doppler-shift attenuation method (DSAM) using particle-γ coincidences, a for determining lifetimes excited nuclear levels in range few femtoseconds up to one picosecond. The coincident detection holds several advantages towards conventional DSAM experiments, such as elimination background and feeding transitions. Using experimental data on 94 Zr, concept (p,p’γ) analysis is presented. Additional results are highlighted.