A5078393227- Nuclear Physics and Applications
- Nuclear physics research studies
- Nuclear reactor physics and engineering
- Particle physics theoretical and experimental studies
- Advanced NMR Techniques and Applications
- Radioactive Decay and Measurement Techniques
- Radiation Detection and Scintillator Technologies
- Medical Imaging Techniques and Applications
- X-ray Spectroscopy and Fluorescence Analysis
- Atomic and Molecular Physics
- Radioactive contamination and transfer
- Cold Fusion and Nuclear Reactions
- Crystallography and Radiation Phenomena
- Radioactive element chemistry and processing
- Quantum Chromodynamics and Particle Interactions
- High-Energy Particle Collisions Research
- Cold Atom Physics and Bose-Einstein Condensates
Tokyo Institute of Technology
2001-2025
An $sp$-mixing model, which describes a compound nuclear reaction by mixing partial waves, predicts correlation term in this reaction. A detailed study of the model is required to feasibility new type time reversal symmetry violation search experiment. The ${\mathbit{\ensuremath{\sigma}}}_{n}\ifmmode\cdot\else\textperiodcentered\fi{}({\mathbit{k}}_{n}\ifmmode\times\else\texttimes\fi{}{\mathbit{k}}_{\ensuremath{\gamma}})$ $^{139}\mathrm{La}(\stackrel{P\vec}{n},\ensuremath{\gamma})$ has been...
A neutron-energy dependent angular distribution was measured for individual $\ensuremath{\gamma}$ rays from the 3.2 eV $p$-wave resonance of $^{131}\mathrm{Xe}+n$, that shows enhanced parity violation owing to a mixing between $s$- and amplitudes. The $\ensuremath{\gamma}$-ray transitions were identified, with respect neutron momentum evaluated as function energy 7132 keV rays, which correspond transition 1807 excited state $^{132}\mathrm{Xe}$. is considered originate interference...
The neutron energy-dependent angular distribution of $\ensuremath{\gamma}$ rays from the $^{117}\mathrm{Sn}(n,\ensuremath{\gamma})$ reaction was measured with germanium detectors and a pulsed beam. clearly observed in $\ensuremath{\gamma}$-ray emissions an energy 9327 keV which corresponds to transition resonance $^{117}\mathrm{Sn}+n$ ground state $^{118}\mathrm{Sn}$. causes angular-dependent asymmetric shape. An asymmetry ${A}_{\mathrm{LH}}$ defined as...
Neutron energy-dependent angular distributions were observed for individual $\gamma$-rays from the 0.74 eV p-wave resonance of $^{139}$La+$n$ to several lower excited states $^{140}$La. The $\gamma$-ray signals analyzed in a two dimensional histogram energy, measured with distributed germanium detectors, and neutron determined time-of-flight pulsed neutrons, identify energy dependence distribution each $\gamma$-rays. was also found photopeak accompanied faint component spectrum. Our results...
The enhancement of the parity-violating asymmetry in vicinity $p$-wave compound nuclear resonances was observed for a variety medium-heavy nuclei. enhanced can be understood using $s$-$p$ mixing model. model predicts several neutron energy-dependent angular correlations between momentum $\vec k_n$, spin $\vec\sigma_n$, $\gamma$-ray k_\gamma$, and polarization $\vec\sigma_\gamma$ $(n,\gamma)$ reaction. In this paper, improved value transverse emissions, corresponding to correlation term...
The spin-orbit interactions in the quark cluster models are reviewed this article. observed force between two nucleons is strong, while that excited baryons or ΛN interaction small. We try to sort out whether model can produce a which explains these features simultaneously. Various works include with different origins such as gluons, mesons, coupling other channels compared each other. roles of symmetric and anti-symmetric forces N scattering phase shifts Y low-energy cross sections investigated.
Large sources of parity violation have been observed in compound nuclear reactions. These enhancements are described by the model, which can be used to describe angular correlation $\gamma$-rays produced $(\rm{n},\gamma)$ reactions medium-heavy nuclei. It has also suggested that these same could lead a similar enhancement time reversal violating processes. Therefore, we interested verifying model studying reaction using polarized neutrons. In this paper, discuss installation and...
The short range parts of the strong and weak hyperon-nucleon interactions are studied with quark substructure baryons taken into account. A summary cluster model calculations baryon-baryon is presented. It pointed out that spin-flavor symmetry structure determines qualitative behaviors short-range YN interactions. We also show spin-orbit forces give characteristic behaviors, which distinct from meson exchange forces. Weak decays $Λ$ in hypernuclei described by direct mechanism. find neutron...