Measurement of the 68Zn(n,g) cross sections at n_TOF and astrophysical implications

本论文的目的是确定同位素~(68)Zn的(n，y)截面。这个横截面对于确定大质量恒星中锌的产量是至关重要的。以往关于这一反应的实验数据很少，也不一致。这一反应的新测量是在欧洲核子研究中心的中子飞行时间装置n_TOF上进行的。我将分析这些数据，以高精度地确定高达200keV能量的截面和中子共振参数。横截面对恒星中核合成过程的影响将被研究。

The aim of my thesis is to determine (n,y) cross sections of the isotope 68Zn. This cross section is essential for determining the production of zinc in massive stars. Previous experimental data of this reaction are scarce and discrepant. A new measurement of this reaction has been performed at the neutron time-of-flight facility n_TOF at CERN. I will analyse the data to determine cross sections and neutron resonance parameters up to 200 keV energy with high accuracy. The impact of the cross section on nucleosynthesis process in stars will be investigated.