Experimental Study of the Neutron Spectroscopic Factors in ^122~125Sn

Several Tin isotopes are on the path of slow neutron capture (s-) process, and the direct components of (n, γ) reactions can be derived from their neutron spectroscopic factors. In the present work, the angular distributions of ^122,124Sn(p, d) and (d, p) reactions are obtained using the high-precision Q3D magnetic spectrograph in Beijing HI-13 tandem accelerator in China Institute of Atomic Energy. The distorted-wave Born approximation (DWBA) calculations are performed to extract the neutron spectroscopic factors of the ground state of ^122-125Sn and the first excited state of ^123,125Sn. The neutron spectroscopic factors of the ground state of ¹²²Sn and ¹²⁴Sn are firstly obtained in this work. As the events of the ground state and first excited state of ^123,125Sn can be distinguished clearly by our experiment, the neutron spectroscopic factories of ^123,125Sn are more reliable.