Systematics and possible nonstatistical behaviour of (n,2n) cross sections

被引：0

作者：

Khuukhenkhuu, G. ^{[1
]}

Saikhanbayar, Ch. ^{[1
]}

Odsuren, M. ^{[1
,2
]}

Sansarbayar, E. ^{[1
,3
]}

Gledenov, Yu. M. ^{[3
]}

Zhang, Guohui ^{[4
]}

机构：

[1] Natl Univ Mongolia, Nucl Res Ctr, Ulaanbaatar 13330, Mongolia

[2] Natl Univ Mongolia, Sch Engn & Appl Sci, Ulaanbaatar 170032, Mongolia

[3] Joint Inst Nucl Res, Frank Lab Neutron Phys, Dubna 141980, Russia

[4] Peking Univ, Inst Heavy Ion Phys, Sch Phys, State Key Lab Nucl Phys & Technol, Beijing 100871, Peoples R China

来源：

INDIAN JOURNAL OF PHYSICS | 2024年 / 98卷 / 10期

关键词：

Compound mechanism; Statistical model; Nonstatistical effect; Neutron cross sections; Systematics of cross sections; 14.5 MEV NEUTRONS; 14-15 MEV N; SEMIEMPIRICAL SYSTEMATICS; STATISTICAL-MODEL; HE-3; REACTIONS; N; P; ALPHA; NUCLEI; TRENDS; ELEMENTS;

D O I：

10.1007/s12648-024-03123-5

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A systematical analysis of experimental (n, 2n) cross sections has been carried out by many authors for long time. However, a substantiated theoretical approach to explain the observed systematical regularity of the experimental (n, 2n) cross sections has not been available until now. In this work, in the framework of the statistical model, a general expression for (n, 2n) reaction cross sections is obtained using the compound mechanism and evaporation model. This expression is then used to deduce the nonstatistical share of the (n, 2n) cross section. It is shown for the first time that the nonstatistical theoretical formula adequately describes the experimental (n, 2n) cross section data for 14-15 MeV neutrons taken from the EXFOR library.

引用

页码：3675 / 3679

页数：5

共 50 条

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