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中文摘要：
实验通过17F＋p共振弹性散射研究了复合核18 Ne激发态中与天体核反应14 O（#,p）17F相关的共振态性质。利用兰州放射性束流线（RIBLL）对弹核碎裂反应产生的放射性束17F进行了分离和提纯。经过降能后,能量为4.22 AMeV的17F束流轰击在T2终端的厚氢靶（CH2）n上。两套（E-ESi探测器望远镜放置在两个不同的探测角度θlab≈2.3°和14°上,对反冲质子的角度和能量进行了测量。实验观测到了复合核18 Ne的几条质子共振能级。通过R-Matrix理论程序对激发函数进行拟合,得到了共振态的能量、自旋、宇称和衰变宽度等共振参数。
英文摘要：
Resonant properties in 18Ne relevant to the stellar reaction of 14O（α,p）17F have been investigated through a resonant elastic scattering of 17F＋p.The 17F RI beam was produced via a projectile-fragmentation reaction,and subsequently separated and purified by Radioactive Ion beam Line in Lanzhou（RIBLL）.After a series of energy degradation,a 4.22 AMeV 17F beam bombarded a thick（CH2）n target at T2 terminal.Energy and angle of the recoiled protons were measured by two sets of ΔE-E silicon telescope at θlab≈2.3°,14° respectively.Several resonances in 18Ne were observed,and their resonant parameters including energy,spin-parity and decay width have been determined by an R-Matrix analysis of the experimental excitation function.
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