Nucleon scattering to the continuum in terms of the two-fermion theory of multistep direct reactions

被引：6
|
作者：
Marcinkowski, A
Marianski, B
Moroz, Z
Wojtkowska, J
Demetriou, P
机构：
[1] Soltan Inst Nucl Studies, Dept Nucl React, PL-00681 Warsaw, Poland
[2] Ist Nazl Fis Nucl, Sez Pavia, I-27100 Pavia, Italy
来源：
NUCLEAR PHYSICS A | 1998年 / 633卷 / 03期
关键词：
Nb-93(p; xp); E=26.5; MeV; measured sigma(E '; theta); (n; xn); E=18-26; analyzed sigma(E ') and sigma(E '; theta) vs data; statistical multistep theory;
D O I：
10.1016/S0375-9474(98)00128-6
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：
Cross sections of the (p,xp) reaction on Nb-93 were measured at an incident energy of 26.5 MeV and analysed together with the existing data for nucleon scattering between 18 and 26 MeV. The (p,p') and (n,n') emission spectra and angular distributions have been described consistently in the framework of the two-fermion multistep direct theory of Feshbach, Kerman and Koonin, We have confirmed the predictions following our earlier analyses that the strength of the effective nucleon-nucleon interaction does not depend on the reaction channel provided that all pre-equilibrium reactions are included. The latter requires allowing for the giant resonances in continuum from the energy-weighted sum rules. The method applied avoids double-counting of collective and onestep direct excitations. (C) 1998 Elsevier Science B.V.
引用
收藏
页码：446 / 458
页数：13
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