A5040718982- Nuclear physics research studies
- Astronomical and nuclear sciences
- Atomic and Molecular Physics
- Advanced Chemical Physics Studies
- Nuclear Physics and Applications
- Rare-earth and actinide compounds
- Quantum Chromodynamics and Particle Interactions
- Energy Load and Power Forecasting
- Particle accelerators and beam dynamics
- Electric Power System Optimization
- Smart Grid Energy Management
- Astro and Planetary Science
Xi'an Jiaotong University
2012-2024
Excited states in the $N=102$ isotones $^{166}\mathrm{Gd}$ and $^{164}\mathrm{Sm}$ have been observed following isomeric decay for first time at RIBF, RIKEN. The half-lives of measured to be 950(60) 600(140) ns $^{164}\mathrm{Sm}$, respectively. Based on patterns potential energy surface calculations, including ${\ensuremath{\beta}}_{6}$ deformation, a spin parity ${6}^{\ensuremath{-}}$ has assigned both nuclei. Collective observables are discussed light systematics region, giving insight...
Total Routhian surface calculations have been performed to investigate rapidly rotating transfermium nuclei, the heaviest nuclei accessible by detailed spectroscopy experiments. The observed fast alignment in ${}^{252}$No and slow ${}^{254}$No are well reproduced incorporating high-order deformations. different rotational behaviors of can be understood for first time terms ${\ensuremath{\beta}}_{6}$ deformation that decreases energies $\ensuremath{\nu}{j}_{15/2}$ intruder orbitals below...
Configuration-constrained potential-energy-surface calculations are performed including ${\ensuremath{\beta}}_{6}$ deformation to investigate high-$K$ isomeric states in nuclei around ${}^{254}$No and ${}^{270}$Ds, the heaviest where there have been some observations of two-quasiparticle isomers, while data for four-quasiparticle isomers scarce. We predict prevalent occurrence these nuclei, together with their favored configurations. The most notable examples, among others,...
A detailed study of the structure doubly mid-shell nucleus Dy104166170 has been carried out, following isomeric and β decay. We have measured yrast band up to spin-parity Jπ=6+ state, K=2 γ-vibration 5+ a low-lying negative-parity based on 2− state that could be candidate for lowest energy octupole vibration within this nucleus, Kπ=6+ two quasi-particle isomer. This was determined an excitation 1643.91(23) keV half life 0.99(4) μs, with reduced hindrance its decay ground-state order...
Configuration-constrained potential-energy-surface calculations with reflection asymmetry show enhanced octupole correlations in the ${K}^{\ensuremath{\pi}}={6}^{\ensuremath{-}}$ states configuration $\ensuremath{\nu}5/{2}^{+}[633]\ensuremath{\bigotimes}\ensuremath{\nu}7/{2}^{\ensuremath{-}}[743]$ $N=142,144$ isotones, where a 33.5-$\ensuremath{\mu}$s isomer has been observed ${}^{234}$U. High-$K$ isomeric other nuclei around ${}^{240}$Pu are calculated to have reflection-symmetric...
Motivated by new experimental spectra in transfermium mass region, we have investigated broken-pair high-$K$ multiparticle excited states and their rotational bands for the $N=150$ isotones around $Z=100$, using configuration-constrained pairing-deformation-frequency self-consistent total-Routhian-surface (TRS) model. In order to avoid spurious phase transition encountered Bardeen-Copper-Schrieffer (BCS) pairing, particle-number-conserving method has been employed pairing calculations....
High spin states in ${}^{108}$Ag have been studied via in-beam $\ensuremath{\gamma}$ spectroscopy techniques using the ${}^{104}$Ru(${}^{7}$Li, $3n$) reaction. The previously known level scheme has extended, and a new band structure established. configurations tentatively assigned to all observed rotational bands. signature splitting behavior of $\ensuremath{\pi}{g}_{9/2}\ensuremath{\bigotimes}\ensuremath{\nu}{g}_{7/2}$ discussed interpreted as change shape from near-oblate prolate. A...
Excited states have been observed for the first time in neutron-deficient nucleus $^{117}\mathrm{Ba}$ using recoil-decay tagging technique following heavy-ion fusion-evaporation reaction $^{64}\mathrm{Zn}$($^{58}\mathrm{Ni}$, 2p3n)$^{117}\mathrm{Ba}$. Prompt $\ensuremath{\gamma}$ rays assigned to through correlations with $\ensuremath{\beta}$-delayed protons decay of $A=117$ recoils. Through analysis $\ensuremath{\gamma}\ensuremath{-}\ensuremath{\gamma}$ coincidence relationships, a...
We present information on the excited states in prolate-deformed, neutron-rich nuclei 165;167Tb100;102. The of interest were synthesised following in-flight fission a 345 MeV per nucleon 238U primary beam 2 mm 9Be target at Radioactive Ion-Beam Factory (RIBF), RIKEN, Japan. exotic separated and identified event-by-event using BigRIPS separator, with discrete energy gamma-ray decays from isomeric half-lives s regime measured EURICA spectrometer. Metastable-state are 165Tb 167Tb interpreted as...
In this contribution the low-excitation structural properties of doubly mid-shell nucleus 170Dy are discussed, with a special empasis on evolution ground state rotational band within dysprosium isotopic chain. Recent results from an experiment EURICA setup at RIKEN shown in context previous measurements PRISMA+CLARA as well PRISMA+AGATA setups Laboratori Nazionali di Legnaro. A brief outlook future planned is also given.
Abstract In power systems with a high proportion of renewable energy resources (RES), the inherent stochasticity and volatility RES necessitate careful consideration in system planning. Scenario analysis is commonly employed to address stochastic nature Existing studies generally adopt an open‐loop structure, where representative days are selected first planning decisions subsequently made. However, this method may not accurately represent operating status owing changes generation structure...
This short paper presents the identification of a metastable, isomeric-state decay in neutron-rich odd-odd, prolate-deformed nucleus 166Tb. The interest was formed using in-flight fission 345 MeV per nucleon 238U primary beam at RIBF facility, RIKEN, Japan. Gamma-ray transitions decaying from observed isomeric states 166Tb were identified EURICA gamma-ray spectrometer, positioned final focus BigRIPS fragments separator. current work identifies single discrete transition energy 119 keV which...