利用15N(d,p)16N反应研究16F低能级质子宽度

¹⁶F是质子滴线附近的奇特原子核，它的所有态均不稳定，会发生质子衰变。目前¹⁶F前4个态的自旋宇称及激发能已通过实验精确测定，但能级宽度仍存在较大分歧。本工作通过¹⁵N(d,p)¹⁶N反应角分布的高精度测量，确定了¹⁶N基态和前3个激发态的谱因子；进而根据镜像核的电荷对称性，用¹⁶N的中子谱因子导出了¹⁶F基态和前3个激发态的质子宽度分别为（29.9±4.1） keV、（108±13） keV、（5.04±0.48） keV和（14.5±1.4） keV。本工作通过一个独立的实验方法为¹⁶F的质子宽度提供了一个重要的交叉检验。

Proton Width of16F Low-lying State from 15N(d,p)16N

¹⁶F is an exotic nucleus near the proton drip line. All states of ¹⁶F are unstable and can decay by proton emission. Up to now, the spin-parity values and excitation energy of the four low-lying states in¹⁶F have been determined by experiment. However, discrepancies still exist among proton widths. The ¹⁵N(d, p)¹⁶N angular distributions were measured precisely. The neutron spectroscopic factors of¹⁶N ground state and first three excited states were determined. The proton widths of the four low-lying states of¹⁶F were deduced to be （29.9±4.1） keV, （108±13） keV, （5.04±0.48） keV and （14.5±1.4） keV, respectively, according to the charge symmetry of mirror nuclei. The present results provide important crosscheck for the proton widths of¹⁶F experimentally.