Proton-induced deuteron knockout reaction as a probe of an isoscalar proton-neutron pair in nuclei

被引:4
|
作者
Chazono, Yoshiki [1 ]
Yoshida, Kenichi [2 ]
Yoshida, Kazuki [3 ]
Ogata, Kazuyuki [1 ,4 ,5 ]
机构
[1] Osaka Univ, Res Ctr Nucl Phys, Ibaraki 5670047, Japan
[2] Kyoto Univ, Dept Phys, Kyoto 6068502, Japan
[3] Japan Atom Energy Agcy, Adv Sci Res Ctr, Tokai, Ibaraki 3191195, Japan
[4] Osaka City Univ, Dept Phys, Osaka 5588585, Japan
[5] Osaka City Univ, Nambu Yoichiro Inst Theoret & Expt Phys, Osaka 5588585, Japan
基金
日本学术振兴会;
关键词
D O I
10.1103/PhysRevC.103.024609
中图分类号
O57 [原子核物理学、高能物理学];
学科分类号
070202 ;
摘要
Background: The isoscalar pn pair is expected to emerge in nuclei having the similar proton and neutron numbers but there is no clear experimental evidence for it. Purpose: We aim to clarify the correspondence between the pn pairing strength in many-body calculation and the triple differential cross section (TDX) of proton-induced deuteron knockout (p, pd) reaction on O-1(6). Methods: The radial wave function of the isoscalar pn pair with respect to the center of O-1(6) is calculated with the energy density functional (EDF) approach and is implemented in the distorted wave impulse approximation framework. The pn pairing strength V-0 in the EDF calculation is varied and the corresponding change in the TDX is investigated. Results: A clear V o dependence of the TDX is found for the O-16(p, pd) 14N(1(2)(+)) at 101.3 MeV. The nuclear distortion is found to make the V-0 dependence stronger. Conclusions: Because of the clear V-0-TDX correspondence, the (p, pd) reaction will be a promising probe for the isoscalar pn pair in nuclei. For quantitative discussion, further modification of the description of the reaction process will be necessary.
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页数:7
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