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| 1 | 2-14 Investigation of the Thermonuclear 18Ne(α, p)21Na Reaction Rate via Resonant Elastic Scattering of 21Na + p显示文摘A nuclear astrophysics experiment was performed at CRIB (CNS low-energy Radioactive-Ion Beam separator)on Mar. 2011. The goal of this experiment is to study the reaction rate of 18Ne(,p)21Na reaction, which mightbe a key breakout reaction from the hot CNO cycle to rp-process in X-ray burst and nova. Yet its reaction rate ispoorly known.Explosive hydrogen burning is thought to be the main source of energy generation and a source of nucleosynthesisin X-ray burst and nova[1;2]. For example, XRBs are characterized by a sudden increase of X-ray emission withinonly a few seconds to a total energy output of about 1040 ergs, which is observed to repeat with some regularity.The recurrence time for single bursts can range from hours to days at the typical temperature of 0.4~2 GK. Thebursts have been interpreted as being generated by thermonuclear runaway on the surface of a neutron star thataccretes H- and He-rich material from a less evolved companion star in a close binary system. As shown in Fig. 1,under its typical temperature, the hydrogen burning in X-ray burst occurs from the hot CNO cycle: | Zhang Liyong He Jianjun Xu Shiwei H.Yamaguchi S. Kubono Y.Wakabayashi Chen Size Hu Jun Ma Peng Y. Togano T. Hashimoto D. Kahl T. Teranishi Chen Ruofu Wang Hongwei Tian Wendong Guo Bing S. Hayakawa N. Iwasa T. Yamada T. Komatsubara | 2014 | IMP & HIRFL Annual Report2014，，1： | 2 |
| 2 | Experimental Study 18Ne(a,p)21Na of Key Astrophysical Reaction显示文摘 | Zhang Liyong He Jianjun Xu Shiwei H. Yamaguchi S. Kubono Y. Wakabayashi Chen Size Ma Peng Y. Togano T. Hashimoto D. Kahl T. Teranishi Chen Ruofu Wang Hongwei Tian Wendong Guo Bing S. Hayakawa N. Iwasa T. Yamada T. Komatsubara | 2011 | IMP & HIRFL Annual Report2011，，1： | 0 |
| 3 | Confirmation/Observation of Hindered E2 Strengths in ^(16,18)C显示文摘The lifetime of the first excited 2+ state in 18C was measured using an upgraded recoil shadow method to determine the electric quadrupole transition. The measured mean lifetime is 18.9±0.9(stat)±4.4(syst)ps,which corresponds to a B(E2; 2+1→0+gs) value of (4.3± 0.2±1.0) e2fm4,or about 1.5 Weisskopf units. The mean lifetime of the first 2+ state in 16C was remeasured to be about 18 ps,about four times shorter than the value reported previously. This discrepancy was explained by incorporating the γ-ray angular distribution measured in this work into the previous measurement. The observed transition strengths in 16,18C are hindered compared to the empirical transition strengths,indicating that the anomalous hindrance observed in 16C persists in 18C. | H. J. Ong N. Imai D. Suzuki H. Iwasaki H. Sakurai T. Onishi M. Suzuki S. Ota S. Takeuchi T. Nakao Y. Togano Y. Kondo N. Aoi H. Baba B. Shawn Y. Ichikawa M. Ishihara T. Kubo K. Kurita T. Motobayashi T. Nakamura T. Okumura Y. Yanagisawa | 2009 | 原子核物理评论2009，26，S1： | 0 |
| 4 | 2 - 17 Experimental Study of Key Astrophysical 18Ne(α,p) 2lNa Reaction显示文摘 | Zhang Liyong He Jianjun Xu Shiwei H. Yamaguehi S. Kubono Y. Wakabayashi Chen Size Hu Jun Ma Peng Y. Togano T. Hashimoto D. Kahl T. Teranishi Chen Ruofu Wang Hongwei TianWendong Guo Bing S. Hayakawa N. Iwasa T. Yamada T. Komatsubara | 2012 | IMP & HIRFL Annual Report2012，，1： | 0 |
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