Measurement of Ni-58(p, p)Ni-58 elastic scattering at low momentum transfer by using the HIRFL-CSR heavy-ion storage ring
Measurement of Ni-58(p, p)Ni-58 elastic scattering at low momentum transfer by using the HIRFL-CSR heavy-ion storage ring
复制标题
使用 HIRFL-CSR 重离子存储环测量 Ni-58(p, p)Ni-58 低动量传递下的弹性散射
DOI：
10.1103/physrevc.100.054609
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发表时间：
2019
影响因子：
3.1
通讯作者：
Zhou X. H.
中科院分区：
文献类型：
--
作者：
Yue K.;Zhang J. T.;Tu X. L.;Shao C. J.;Li H. X.;Ma P.;Mei B.;Chen X. C.;Yang Y. Y.;Liu X. Q.;Xing Y. M.;Fang K. H.;Li X. H.;Sun Z. Y.;Wang M.;Egelhof P.;Litvinov Yu A.;Blaum K.;Zhang Y. H.;Zhou X. H.
介绍了兰州重离子加速器冷却储存环（HIRFL-CSR）上首次进行的环内反应实验，即质子在稳定核上的弹性散射。在实验储存环（CSRe）上，能量为95 MeV/u的循环离子与内部氢气靶发生了反复的相互作用。用超高真空兼容硅条探测器测量了弹性碰撞产生的低能质子反冲。推导出的微分截面通过测量电离碰撞产生的射弹的壳层x射线进行归一化。通过与实验截面的比较，发现在测量区域内的计算结果与理论计算结果吻合较好，而理论计算结果是由全局唯象光学模型势得到的.我们的研究结果，使新的研究机会，光学模型潜力的研究外来核素通过使用环内反应装置在HIRFL-CSR设施。
The very first in-ring reaction experiment at the Cooler Storage Ring at the Heavy Ion Research Facility in Lanzhou (HIRFL-CSR), namely proton elastic scattering on stablenuclei, is presented. The circulatingions with an energy of 95 MeV/u were interacting repeatedly with an internal hydrogen gas target in the experimental storage ring (CSRe). Low-energy proton recoils from the elastic collisions were measured with an ultra-high vacuum compatible silicon-strip detector. Deduced differential cross sections were normalized by measuring-shell x rays fromprojectiles due to theionization collisions. Compared to the experimental cross sections, a good agreement has been achieved with the theoretical predictions in the measured region, which were obtained by using the global phenomenological optical model potentials. Our results enable new research opportunities for optical model potential studies on exotic nuclides by using the in-ring reaction setup at the HIRFL-CSR facility.