Exclusive quasi-free proton knockout from oxygen isotopes at intermediate energies-猫眼课题宝

DOI：

10.1093/ptep/pty011

发表时间：

2018-02

期刊：

Progress of Theoretical and Experimental Physics

影响因子：

3.5

通讯作者：

中科院分区：

物理与天体物理4区

文献类型：

作者：

S. Kawase;T. Uesaka;Tsz Leung Tang;Didier Beaumel;M. Dozono;Taku Fukunaga;Toshihiko Fujii;N. Fukuda;A. Galindo-Uribarri;S. Hwang;N. Inabe;T. Kawabata;T. Kawahara;Wooyoung Kim;Keiichi Kisamori;M. Kobayashi;T. Kubo;Y. Kubota;K. Kusaka;Cheongsoo Lee;Y. Maeda;H. Matsubara;S. Michimasa;H. Miya;T. Noro;Y. Nozawa;A. Obertelli;K. Ogata;S. Ota;E. Padilla-Rodal;S. Sakaguchi;H. Sakai;M. Sasano;S. Shimoura;S. Stepanyan;Hiroshi Suzuki;Tomoka Suzuki;M. Takaki;H. Takeda;A. Tamii;H. Tokieda;T. Wakasa;T. Wakui;K. Yako;J. Yasuda;Y. Yanagisawa;R. Yokoyama;Kazuki Yoshida;K. Yoshida;J. Zenihiro

研究了氧同位素在较宽的同位旋范围内，单粒子强度与质子和中子分离能差的关系。在中能下测量了14，16，18，22，24O上的准自由(p，2p)反应截面。测量的截面与基于扭曲波脉冲近似和壳模型PSD价空间光谱因子的预测值进行了比较。约化因子是实验截面与理论预测值的比值，与质子-中子分离能差没有明显的依赖关系。这一结果与稳定靶上(e，e，p)反应的结果以及最近从头计算的预测是一致的。

The dependence of the single-particle strength on the difference between proton and neutron separation energies is studied for oxygen isotopes in a wide range of isospins. The cross sections of the quasi-free (p, 2p) reaction on 14,16,18,22,24O were measured at intermediate energies. The measured cross sections are compared to predictions based on the distorted wave impulse approximation and shell-model psd valence-space spectroscopic factors. The reduction factors, which are the ratio of the experimental cross sections to the theoretical predictions, show no apparent dependence on the proton–neutron separation energy difference. The result is compatible with the result of the (e, e p) reaction on stable targets and with the predictions of recent ab initio calculations.

Exclusive quasi-free proton knockout from oxygen isotopes at intermediate energies

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