标题： 研究7556 keV下 ^{15}O的质子俘获共振态 显示英文标题

标题： Study of proton capture resonant state of ^{15}O at 7556 keV

摘要： CNO 循环中最慢的反应 14N(p, γ)15O 已通过填充 7556 keV 处的质子俘获共振态 ^{15}O 的实验室能量 Ep^lab = 278 keV (质心能量 Er^c.m. = 259 keV) 来研究。 共振强度已从实验数据中确定。 亚阈值共振态 Ex=6792 keV 的寿命以及 5181 keV 和 6172 keV 态的寿命已使用多普勒位移衰减法 (DSAM) 测量。 核 ^{15}O 的结构性质，如能级能量、跃迁强度、能级寿命和光谱因子，已通过使用大基组壳模型理论计算得出，与目前和以前的实验数据吻合较好。 显示英文摘要

摘要： The slowest reaction in the CNO cycle 14N(p, gamma)15O has been studied by populating the E^lab_p =278 keV (E^r_c.m.=259 keV) proton capture resonant state of ^{15}O at 7556 keV. The strength of the resonance has been determined from the experimental data. The level lifetime of the sub-threshold resonant state at Ex=6792 keV, as well as the lifetimes of the 5181 keV and 6172 keV states, have been measured using the Doppler shift attenuation method (DSAM). The structural properties of the nucleus ^{15}O, such as, the level energies, transition strengths, level lifetimes, and spectroscopic factors, have been calculated theoretically by using the large basis shell model, which agrees reasonably well with the present as well as the previous experimental data.