StudyofProtonResonancesin22MgbyResonantElasticScatteringof21Na+pandItsAstrophysicalImplicationin18Ne（α,p）21NaReactionRate

被引：0

作者：

SKubono ^{[1
]}

TTeranishi ^{[1
,2
]}

MNotani ^{[1
]}

HBaba ^{[1
]}

SNishimura ^{[3
]}

JYMoon ^{[4
]}

MNishimura ^{[3
]}

SMichimasa ^{[1
]}

HIwasaki ^{[1
,3
]}

YYanagisawa ^{[3
]}

NHokoiwa ^{[2
]}

MKibe ^{[2
]}

JHLee ^{[4
]}

SKato ^{[5
]}

YGono ^{[2
]}

CSLee ^{[4
]}

机构：

[1] Center for Nuclear Study,University of Tokyo(CNS)

[2] Department of Physics,Kyushu University

[3] RIKEN(The Institute of Physical and Chemical Research)

[4] Department of Physics,Chung-Ang University

[5] Department of Physics,Yamagata

来源：

原子核物理评论 | 2009年 / 26(S1)卷 / S1期

关键词：

nuclear astrophysics; reaction rate; nuclear structure and property;

D O I：

暂无

中图分类号：

O571.2 [原子核的结构与性质];

学科分类号：

摘要：

Proton resonant states in 22Mg have been investigated by the resonant elastic scattering of 21Na+p. The 21Na beam with a mean energy of 4.00 MeV/u was separated by the CNS radioactive ion beam separator(CRIB) and bombarded a thick(CH2)n target. The energy spectra of recoiled protons were measured at scattering angles of θcm ≈172° and 146°,respectively. A new state at 7.06 MeV has been observed clearly and another new one at 7.28 MeV is tentatively identified due to its low statistics. The proton resonant parameters were deduced from an R-matrix analysis of the differential cross section data. The astrophysical resonant reaction rate for the 18Ne(α,p)21Na reaction has been estimated,and it is about five times larger than that assumed before.

引用

页码：153 / 157

页数：5