Photodisintegration of deuterium and big bang nucleosynthesis

被引：51

作者：

Hara, KY

Utsunomiya, H

Goko, S

Akimune, H

Yamagata, T

Ohta, M

Toyokawa, H

Kudo, K

Uritani, A

Shibata, Y

Lui, YW

Ohgaki, H

机构：

[1] Konan Univ, Dept Phys, Higashinada Ku, Kobe, Hyogo 6588501, Japan

[2] Natl Inst Adv Ind Sci & Technol, Tsukuba, Ibaraki 3058568, Japan

[3] Texas A&M Univ, Inst Cyclotron, College Stn, TX 77843 USA

[4] Kyoto Univ, Inst Adv Energy, Kyoto 6110011, Japan

来源：

PHYSICAL REVIEW D | 2003年 / 68卷 / 07期

关键词：

D O I：

10.1103/PhysRevD.68.072001

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Photodisintegration cross sections were measured for deuterium with Laser-Compton scattering gamma beams at seven energies near threshold. Combined with the preceding data, R(E)=N(a)sigmav for the p(n,gamma)D reaction is for the first time evaluated based on experimental data with 6% uncertainty in the energy region relevant to the big bang nucleosynthesis (BBN). The result confirms the theoretical evaluation on which the BBN in the precision era relies.

引用

页数：6

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