Study of the 26Si(p,γ)27P reaction through Coulomb dissociation of 27P
Study of the 26Si(p,γ)27P reaction through Coulomb dissociation of 27P
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DOI：
10.1140/epja/i2006-08-036-3
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发表时间：
2006-03
期刊：
影响因子：
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通讯作者：
Y. Togano;T. Gomi;T. Motobayashi;Y. Ando;N. Aoi;H. Baba;K. Demichi;Z. Elekes;N. Fukuda;
中科院分区：
文献类型：
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作者：
Y. Togano;T. Gomi;T. Motobayashi;Y. Ando;N. Aoi;H. Baba;K. Demichi;Z. Elekes;N. Fukuda;
用57 MeV/核子的27P束流和铅靶对27P的库仑离解进行了实验研究。测得27P第一激发态的E_2伽马衰变宽度为(2.8±0.5)×10−5 eV。结合实验结果和壳模型计算，估算了具有天体物理意义的(M1+E_2)态的总伽马衰变宽度。根据估算的伽马衰变总宽度，推算出26Si(p，γ)27P的反应速率。讨论了由估算的伽马衰变宽度得出的天体物理意义。
The Coulomb dissociation of27P was studied experimentally using27P beams at 57 MeV/nucleon with a lead target. TheE2 gamma decay width of the first excited state in27P was determined to be (2.8 ± 0.5) × 10−5eV. The total (M1+E2)gamma decay width of the state, which is of astrophysical interest, is estimated by combining the experimental result and a shell model calculation. The reaction rate of26Si(p, γ)27P is deduced from the estimated total gamma decay width. The astrophysical implication derived from estimated gamma decay width is discussed.