α knockout reaction as a new probe for α formation in α-decay nuclei
Creators
- 1. Japan Atomic Energy Agency, Advanced Science Research Center, Tokai, Ibaraki (Japan)
Description
This paper is a commentary on the award-winning paper 'α knockout reaction as a new probe for α formation in α-decay nuclei' of the 17th (2023) Young Scientist Award of the Physical Society of Japan (theoretical nuclear physics discipline). Alpha decay is a phenomenon that has been studied for nearly a century since the dawn of atomic physics. However, this phenomenon, in which the nuclei, which are nucleon many-body system, spontaneously splits into α particles and daughter nuclei, and decays due to the quantum-mechanical tunneling effect, has not yet fully understood. This paper, based on the research on the correlation between the α particle formation rate and the knockout reaction cross-section using the α knockout reaction, which has mainly been conducted for light nuclei, explains what kind of new knowledge can be obtained, when the knockout reaction is applied to α-decay nuclei. (A.O.)
Abstract (Japanese)
本稿は、第17回(2023年)日本物理学会若手奨励賞(理論核物理領域)の受賞論文"α knockout reaction as a new probe for α formation in α-decay nuclei", K. Yoshida and J. Tanaka, Physical Review C 106, 014621 (2022) [1] の解説記事です。アルファ崩壊は、原子核物理の幕開けからこれまで100年近く研究されてきた現象です。しかし、核子多体系である原子核が自発的にアルファ粒子と娘核に分かれ、量子力学的なトンネル効果によって崩壊するというこの現象は、いまだ完全に理解されたとは言い切れません。本論文では、私がこれまで主に軽い核を対象に行ってきた、アルファノックアウト反応を用いたアルファ粒子形成率とノックアウト反応断面積との対応関係に関する研究を土台に、アルファ崩壊核にノックアウト反応を適用するとどのような新たな知見が得られるのか、反応理論の観点から議論しました。特に本稿では、論文の内容を平易に解説するとともに、論文原稿には載らなかった本研究の背景についても触れます。(著者)Additional details
Additional titles
- Original title (Japanese)
- アルファ粒子ノックアウト反応による核内アルファ粒子析出確率の研究
Publishing Information
- Journal Title
- Genshikaku Kenkyu
- Journal Volume
- 67
- Journal Issue
- 2
- Series
- 雑誌名:原子核研究
- Journal Page Range
- p. 40-50
- ISSN
- 0367-4169
INIS
- Country of Publication
- Japan
- Country of Input or Organization
- Japan
- INIS RN
- 54077986
- Subject category
- S73: NUCLEAR PHYSICS AND RADIATION PHYSICS;
- Descriptors DEI
- ALPHA DECAY; ALPHA PARTICLES; CLUSTER MODEL; DIFFERENTIAL CROSS SECTIONS; DISTORTED WAVE THEORY; IMPULSE APPROXIMATION; KNOCK-OUT REACTIONS; LEAD 206; LEAD 208; NUCLEAR REACTION KINETICS; POLONIUM 210 TARGET; POLONIUM 212; PROTON REACTIONS; PROTONS
- Descriptors DEC
- ALPHA DECAY RADIOISOTOPES; APPROXIMATIONS; BARYON REACTIONS; BARYONS; CALCULATION METHODS; CHARGED PARTICLES; CHARGED-PARTICLE REACTIONS; CROSS SECTIONS; DECAY; DIRECT REACTIONS; ELEMENTARY PARTICLES; EVEN-EVEN NUCLEI; FERMIONS; HADRON REACTIONS; HADRONS; HEAVY NUCLEI; IONIZING RADIATIONS; ISOTOPES; KINETICS; LEAD ISOTOPES; MATHEMATICAL MODELS; NANOSECONDS LIVING RADIOISOTOPES; NUCLEAR DECAY; NUCLEAR MODELS; NUCLEAR REACTIONS; NUCLEI; NUCLEON REACTIONS; NUCLEONS; POLONIUM ISOTOPES; RADIATIONS; RADIOISOTOPES; REACTION KINETICS; SECONDS LIVING RADIOISOTOPES; STABLE ISOTOPES; TARGETS
Optional Information
- Notes
- 39 refs., 6 figs., 1 tab.