Total cross section of the 3H(p,n)3He reaction from threshold to 4.5 MeV -: art. no. 015801

被引：34

作者：

Brune, CR ^{[1
]}

Hahn, KI ^{[1
]}

Kavanagh, RW ^{[1
]}

Wrean, PR ^{[1
]}

机构：

[1] CALTECH, WK Kellogg Radiat Lab, Pasadena, CA 91125 USA

来源：

PHYSICAL REVIEW C | 1999年 / 60卷 / 01期

关键词：

D O I：

10.1103/PhysRevC.60.015801

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：

We report new measurements of the total cross section for the H-3(p,n)He-3 reaction from threshold (E-p = 1.02 MeV) to E-p=4.5 MeV. The experiment utilized specially prepared Ti-H-3 targets, and neutrons were detected using a 4 pi detector. A weak resonant structure due to an excited state in He-4 is observed which was not seen in previous cross section measurements. A new expression for the He-3(n,p)H-3 thermonuclear reaction rate for temperatures below 10 GK is presented which will allow for more accurate calculations of the yields of light elements produced by big-bang nucleosynthesis. [S0556-2813(99)03307-5].

引用

页数：8

共 58 条

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