تقرير
The decay characteristic of $^{22}$Si and its ground-state mass significantly affected by three-nucleon forces
| العنوان: | The decay characteristic of $^{22}$Si and its ground-state mass significantly affected by three-nucleon forces |
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| المؤلفون: | Xu, X. X., Lin, C. J., Sun, L. J., Wang, J. S., Lam, Y. H., Lee, J., Fang, D. Q., Li, Z. H., Smirnova, N. A., Yuan, C. X., Yang, L., Wang, Y. T., Li, J., Ma, N. R., Wang, K., Zang, H. L., Wang, H. W., Li, C., Liu, M. L., Wang, J. G., Shi, C. Z., Nie, M. W., Li, X. F., Li, H., Ma, J. B., Ma, P., Jin, S. L., Huang, M. R., Bai, Z., Yang, F., Jia, H. M., Liu, Z. H., Wang, D. X., Yang, Y. Y., Zhou, Y. J., Ma, W. H., Chen, J., Hu, Z. G., Zhang, Y. H., Ma, X. W., Zhou, X. H., Ma, Y. G., Xu, H. S., Xiao, G. Q., Zhang, H. Q. |
| سنة النشر: | 2016 |
| المجموعة: | Nuclear Experiment |
| مصطلحات موضوعية: | Nuclear Experiment |
| الوصف: | The decay of the proton-rich nucleus $^{22}$Si was studied by a silicon array coupled with germanium clover detectors. Nine charged-particle groups are observed and most of them are recognized as $\beta$-delayed proton emission. A charged-particle group at 5600 keV is identified experimentally as $\beta$-delayed two-proton emission from the isobaric analog state of $^{22}$Al. Another charged-particle emission without any $\beta$ particle at the low energy less than 300 keV is observed. The half-life of $^{22}$Si is determined as 27.5 (18) ms. The experimental results of $\beta$-decay of $^{22}$Si are compared and in nice agreement with shell-model calculations. The mass excess of the ground state of $^{22}$Si deduced from the experimental data shows that three-nucleon (3N) forces with repulsive contributions have significant effects on nuclei near the proton drip line. Comment: 6 pages, 4 figures |
| نوع الوثيقة: | Working Paper |
| URL الوصول: | http://arxiv.org/abs/1610.08291 |
| رقم الأكسشن: | edsarx.1610.08291 |
| قاعدة البيانات: | arXiv |
| الوصف غير متاح. |