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 \(^{208}\hbox {Pb}(^7\hbox {Li},^6\hbox {He})^{209}\hbox {Bi}\) proton stripping reaction at an incident energy of 52 MeV can be well described by the inclusion of the \(^7\hbox {Li}\) 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 \(^7\hbox {Li}\), 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 \(^{209}\hbox {Bi}\) which is significantly improved) but does affect appreciably the values of the \(^{209}\mathrm {Bi} \rightarrow {^{208}\mathrm {Pb}} + p\) spectroscopic factors. Implications for experiments with weakly-bound light radioactive beams are discussed.

众所周知，基态重新定向耦合对变形核的弹性散射具有重要影响，但这种耦合对传输通道的影响却研究得很少。在这封信中，我们证明了\（^ {208} \ hbox {Pb}（^ 7 \ hbox {Li}，^ 6 \ hbox {He}）^ {209} \ hbox {Bi} \）质子剥离反应在通过在耦合通道Born近似形式中包含\（^ 7 \ hbox {Li} \）基态重新定向耦合，可以很好地描述52 MeV的入射能量。以前发现全有限范围失真波伯恩近似计算无法描述这些数据。除偶极子的0.478-MeV \（1/2 ^-\）激发态\（^ 7 \ hbox {Li} \）以及相关的两步传递路径对角度分布的形状影响很小或没有影响（除去用于导致1.61-MeV \（13/2 \（^ {209} \ hbox {Bi} \）的^ + \）水平，该水平已得到显着改善），但确实会明显影响\（^ {209} \ mathrm {Bi} \ rightarrow {^ {208} \ mathrm {Pb}} + p \）光谱因素。讨论了对具有弱束缚光的放射性束的实验的意义。