Isoscalar transitions and $$\alpha $$ cluster structures in heavy nuclei
| العنوان: | Isoscalar transitions and $$\alpha $$ cluster structures in heavy nuclei |
|---|---|
| المؤلفون: | S. Ebata, R. Nakamoto, T. Okuno, M. Ito, M. Nakao |
| المصدر: | The European Physical Journal A. 57 |
| بيانات النشر: | Springer Science and Business Media LLC, 2021. |
| سنة النشر: | 2021 |
| مصطلحات موضوعية: | Physics, Nuclear and High Energy Physics, 010308 nuclear & particles physics, Isoscalar, Nuclear Theory, Hadron, Magnetic monopole, 01 natural sciences, Dipole, 0103 physical sciences, Nuclear fusion, Atomic physics, Nuclear Experiment, 010306 general physics, Nucleon, Excitation, Energy (signal processing) |
| الوصف: | Isoscalar monopole and dipole transitions are investigated in the medium and heavier systems, such as $$^{44}\hbox {Ti}$$ and even $$^{104-110}\hbox {Te}$$ nuclei by employing the macroscopic $$\alpha $$ cluster model of $$\alpha + {}^{40}\hbox {Ca}$$ and $$\alpha + {}^{100-106}\hbox {Sn}$$ , respectively. Theoretical calculations predict that the strengths of the monopole and dipole transitions are strongly enhanced in the excitation energy below 10 MeV. These low-lying enhancements are induced by the excitation in the relative motion of the $$\alpha $$ cluster and the residual nucleus, and the magnitudes of the transition matrix element are comparable to the single nucleon excitation, which requires much higher excitation energy than the energy for the $$\alpha $$ excitation. The electric dipole strength is also calcluated for $$^{135}\hbox {Cs}$$ with the cluster model of $$\alpha + {}^{131}\hbox {I}$$ , which is a kind of nuclear waste. The application of the monopole and dipole transitions involving the $$\alpha $$ emission to the nuclear transmutation of the nuclear wastes is also discussed. |
| تدمد: | 1434-601X 1434-6001 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::fbb6b0ccf41a3b962017edbcacc509b6 https://doi.org/10.1140/epja/s10050-021-00372-4 |
| حقوق: | CLOSED |
| رقم الأكسشن: | edsair.doi...........fbb6b0ccf41a3b962017edbcacc509b6 |
| قاعدة البيانات: | OpenAIRE |
Find this article in full text from Springer Verlag. | تدمد: | 1434601X 14346001 |
|---|