Influence of breakup on elastic and alpha-production channels in the Li-6+Sn-116 reaction
Influence of breakup on elastic and alpha-production channels in the Li-6+Sn-116 reaction
复制标题
Li-6 Sn-116 反应中断裂对弹性通道和 α 通道的影响
DOI：
10.1088/1674-1137/41/10/104001
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发表时间：
2017
影响因子：
3.6
通讯作者：
Saxena A.
中科院分区：
文献类型：
--
作者：
Patel D.;Mukherjee S.;Deshmukh N.;Lubian J.;Wang Jian-Song;Correa T.;Nayak B. K.;Yang Yan-Yun;Ma Wei-Hu;Biswas D. C.;Gupta Y. K.;Santra S.;Mirgule E. T.;Danu L. S.;Singh N. L.;Saxena A.
本文研究了6Li + 116 Sn系统在库仑势垒以下和附近能量下破裂反应对弹性和α产生通道的影响。在22 - 40 MeV的几种入射能量下，得到了α粒子产生微分截面的角分布。测量的破碎α粒子微分截面和弹性散射角分布已与连续离散耦合通道（CDCC）计算的预测进行了比较。分裂耦合的影响也进行了研究，通过提取动态极化电位（DPP）的CDCC计算。从CDCC计算的预测的核，库仑，和总的分裂贡献的相对重要性也进行了研究。与库仑破裂相比，核破裂耦合在6Li射弹与116 Sn靶核反应的直接破裂机制中起着重要的作用.强核碎裂耦合对库仑-核干涉峰的影响表现为抑制。CDCC计算的直接破碎截面低于所有能量下测量的α粒子微分截面。这表明，测量的α粒子也可能有其他可能的分裂反应通道的贡献。
The effects of breakup reactions on elastic and α-production channels for the 6 Li+ 116 Sn system have been investigated at energies below and near the Coulomb barrier. The angular distributions of α-particle production differential cross sections have been obtained at several projectile energies between 22 and 40 MeV. The measured breakup α-particle differential cross sections and elastic scattering angular distributions have been compared with the predictions of continuum-discretized coupled channels (CDCC) calculations. The influence of breakup coupling has also been investigated by extracting dynamic polarization potentials (DPP) from the CDCC calculations. From the predictions of CDCC calculations the relative importance of the nuclear, Coulomb, and total breakup contributions have also been investigated. The nuclear breakup couplings are observed to play an important role in comparison to the Coulomb breakup for the direct breakup mechanisms associated in the reaction of 6 Li projectile with 116 Sn target nuclei. The influence of strong nuclear breakup coupling exhibits suppression in the Coulomb-nuclear interference peak. The direct breakup cross sections from the CDCC calculations under-predict the measured α-particle differential cross sections at all energies. This suggests that the measured α particles may also have contributions from other possible breakup reaction channels.