Single-nucleon transfer reactions are processes that selectively probe single-particle components of the populated many-body nuclear states. In this context, recent efforts have been made to build a unified description of the rich nuclear spectroscopy accessible in heavy-ion collisions. An example of this multichannel approach is the study of the competition between successive nucleon transfer and charge exchange reactions, the latter being of particular interest in the context of single and double beta decay studies. To this extent, the one-proton pickup reaction ${}^{48}\mathrm{Ti}({}^{18}\mathrm{O},{}^{19}\mathrm{F}){}^{47}\mathrm{Sc}$ at 275 MeV was measured for the first time, under the NUMEN experimental campaign. Differential cross-section angular distribution measurements for the ${}^{19}\mathrm{F}$ ejectiles were performed at INFN-LNS in Catania by using the MAGNEX large acceptance magnetic spectrometer. The data were analyzed within the distorted-wave and coupled-channels Born approximation frameworks. The initial and final-state interactions were described adopting the São Paulo potential, whereas the spectroscopic amplitudes for the projectile and target overlaps were derived from shell-model calculations. The theoretical cross sections are found to be in very good agreement with the experimental data, suggesting the validity of the optical potentials and the shell-model description of the involved nuclear states within the adopted model space.

中文翻译：

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O18+Ti48 体系的单质子转移反应在 275 MeV

单核子转移反应是选择性探测多体核态的单粒子成分的过程。在此背景下，最近已做出努力，以建立对重离子碰撞中可获得的丰富核光谱的统一描述。这种多通道方法的一个例子是研究连续核子转移和电荷交换反应之间的竞争，后者在单和双 β 衰变研究的背景下特别有趣。就此而言，单质子拾取反应${}^{48}钛({}^{18}\mathrm{哦},{}^{19}\mathrm{F}){}^{47}\mathrm{科学}$在 NUMEN 实验活动下，首次测量到 275 MeV。微分截面角分布测量${}^{19}\mathrm{F}$弹射是在卡塔尼亚的 INFN-LNS 使用 MAGNEX 大型接受磁谱仪进行的。在畸变波和耦合通道 Born 近似框架内对数据进行了分析。初始状态和最终状态相互作用采用圣保罗势进行描述，而射弹和目标重叠的光谱幅度来自壳模型计算。发现理论横截面与实验数据非常吻合，表明所采用的模型空间内所涉及的核状态的光势和壳模型描述的有效性。