Study of proton resonances in 18Ne via resonant elastic scattering of 17F+p and its astrophysical implication

被引：5

作者：

He JianJun ^{[1
]}

Hu Jun ^{[1
,2
]}

Xu ShiWei ^{[1
]}

Chen ZhiQiang ^{[1
]}

Zhang XueYing ^{[1
]}

Wang JianSong ^{[1
]}

Yu XiangQing ^{[1
]}

Zhang LiYong ^{[1
,2
]}

Li Long ^{[1
,2
]}

Yang YanYun ^{[1
,2
]}

Ma Peng ^{[1
,2
]}

Zhang XueHeng ^{[1
]}

Hu ZhengGuo ^{[1
]}

Guo ZhongYan ^{[1
]}

Xu Xing ^{[1
,2
]}

Yuan XiaoHua ^{[1
]}

Lu Wan ^{[1
,2
]}

Yu YuHong ^{[1
]}

Zang YongDong ^{[1
,2
]}

Tang ShuWen ^{[1
,2
]}

Ye RuiPing ^{[1
,2
]}

Chen JinDa ^{[1
,2
]}

Jin ShiLun ^{[1
,2
]}

Du ChengMing ^{[1
,2
]}

Wang ShiTao ^{[1
,2
]}

Ma JunBing ^{[1
,2
]}

Liu LongXiang ^{[1
,2
]}

Bai Zhen ^{[1
,2
]}

Lei XiangGuo ^{[1
]}

Sun ZhiYu ^{[1
]}

Zhang YuHu ^{[1
]}

Zhou XiaoHong ^{[1
]}

Xu HuShan ^{[1
]}

Su Jun ^{[3
]}

Li ErTao ^{[3
]}

Wang HongWei ^{[4
]}

Tian WenDong ^{[4
]}

Li XiangQing ^{[5
,6
]}

机构：

[1] Chinese Acad Sci, IMP, Lanzhou 730000, Peoples R China

[2] Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China

[3] CIAE, Beijing 102413, Peoples R China

[4] Chinese Acad Sci, Shanghai Inst Appl Phys SINAP, Shanghai 201800, Peoples R China

[5] Peking Univ, Sch Phys, Beijing 100871, Peoples R China

[6] Peking Univ, State Key Lab Nucl Phys & Technol, Beijing 100871, Peoples R China

来源：

SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY | 2011年 / 54卷

基金：

中国国家自然科学基金;

关键词：

resonant reaction; reaction rate; explosive burning; accreting binary systems; SHORT-LIVED NUCLEI; STELLAR REACTIONS; RP-PROCESS;

D O I：

10.1007/s11433-011-4407-9

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The proton resonant properties in Ne-18, which determine the reaction rate of the key stellar O-14(alpha,p)F-17 reaction, have been studied by using a technique of proton resonant elastic scattering of F-17+p. A 4.22 MeV/nucleon F-17 radioactive ion (RI) beam was produced via a projectile-fragmentation reaction, and separated by a Radioactive Ion Beam Line in Lanzhou (RIBLL). By bombarding a thick (CH2)(n) target, the energy spectra of the recoiled protons were measured by two Delta E-E silicon telescopes at the center-of-mass scattering angles of theta(c.m.)approximate to 175 degrees +/- 5 degrees, theta(c.m.)approximate to 152 degrees +/- 8 degrees, respectively. Several proton resonances in Ne-18 were observed clearly. A further R-matrix analysis of the experimental data is under way to determine the resonant parameters. The present work reports the preliminary results briefly.

引用

页码：S32 / S36

页数：5

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