论文标题

质子捕获的共鸣状态 ^{15} o在7556 keV的谐振状态

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

论文作者

Sharma, Sathi, Gupta, Arkabrata, Chowdhury, M. Roy, Mandal, A., Bisoi, A., Nanal, V., Tribedi, L. C., Sarkar, M. Saha

论文摘要

通过填充E^lab_p = 278 keV(e^r_c.m。= 259 keV)质子捕获的共振状态^{15} o在7556 keV时,CNO循环14N(P,伽马)15O中的最慢反应已研究。共振的强度已从实验数据确定。 Ex = 6792 KeV处的子阈值共振状态的水平寿命,以及5181 KEV和6172 KEV状态的寿命,已使用多普勒移位方法(DSAM)测量。通过使用大型基壳模型,已经计算出核 ^{15} O的结构特性,例如水平能,过渡强度,水平寿命和光谱因子,这些模型与当前以及先前的实验数据相当吻合。

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.

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