Study of pionic correlation effects in nuclei via the parity-transfer reaction

我们提出了一个新的探针，即宇称转移(^&lt；16&gt；O，^&lt；16&gt；F)反应，用于研究0^态，其分布有望反映原子核中的类pion关联。本研究的成果是：首先，为了验证宇称转移反应的有效性，我们计划在250A MeV下进行^&lt；12&gt；C(^&lt；16&gt；O，^&lt；16&gt；F)实验。第二，我们为(^&lt；16&gt；O，^&lt；16&gt；F)实验开发了一个新的质子探测器系统。第三，我们用扭曲波玻恩近似分析了250A MeV的宇称转移(^&lt；16&gt；O，^&lt；16&gt；F)反应，发现扭曲效应对于定量理解它的角分布是很重要的。

We proposed a new probe, a parity-transfer (^<16>O,^<16>F) reaction for the study of 0^- states, whose distributions are expected to reflect pion-like correlations in nuclei. The accomplishments of this research are; firstly, we planed the ^<12>C(^<16>O,^<16>F) experiment at 250A MeV in order to confirm the effectiveness of the parity-transfer reaction. Second, we developed a new proton detector system for the (^<16>O,^<16>F) experiment. Thirdly, we analyzed the parity-transfer (^<16>O,^<16>F) reaction at 250A MeV using the distorted wave Born approximation and found that the distortion effect is important to understand its angular distribution quantitatively.