论文标题
入口通道重新定向耦合对质子剥离的重要影响
Important Influence of Entrance Channel Reorientation Coupling on Proton Stripping
论文作者
论文摘要
虽然众所周知，基态的重新定向耦合可以对变形核的弹性散射产生重大影响，但这种耦合对转移通道的影响的研究较少得多。在这封信中，我们证明了208pb（7li，6he）209bi质子剥离反应在52 MEV的入射能量中可以通过包括7LI基态重新定向耦合在耦合通道中的耦合通道中的近似形式形式上的形式上很好地描述。以前发现全有限范围扭曲的波出生近似计算无法描述这些数据。将7Li的0.478-meV 1/2-激发态添加，以及相关的两步转移路径，对角度分布的形状几乎没有影响（除了剥离导致1.61-mev 13/2 +的209BI水平209BI水平的209BI水平，这确实有所改善），但确实会影响209bi-> 208pb +> 208pb + pspectrusciancip crecept ceppend ceppend ceppend ceppend ceppend ceppend ceppend fircect actect fcection fcectrusc。讨论了对具有弱结合光放射光束的实验的影响。
While it is well established that the ground state reorientation coupling can have a significant influence on the elastic scattering of deformed nuclei, the effect of such couplings on transfer channels has been much less well investigated. In this letter we demonstrate that the 208Pb(7Li,6He)209Bi proton stripping reaction at an incident energy of 52 MeV can be well described by the inclusion of the 7Li ground state reorientation coupling within the coupled channels Born approximation formalism. Full finite-range distorted wave Born approximation calculations were previously found to be unable to describe these data. Addition of coupling to the 0.478-MeV 1/2- excited state of 7Li, together with the associated two-step transfer path, has little or no influence on the shape of the angular distributions (except that for stripping leading to the 1.61-MeV 13/2+ level of 209Bi which is significantly improved) but does affect appreciably the values of the 209Bi -> 208Pb + p spectroscopic factors. Implications for experiments with weakly-bound light radioactive beams are discussed.
