Enhanced monopole transition strength from the cluster decay of 13C

被引：14

作者：

Feng, Jun ^{[1
,2
]}

Ye, YanLin ^{[1
,2
]}

Yang, Biao ^{[1
,2
]}

Lin, ChengJian ^{[3
]}

Jia, HuiMin ^{[3
]}

Pang, DanYang ^{[4
,5
]}

Li, ZhiHuan ^{[1
,2
]}

Lou, JianLing ^{[1
,2
]}

Li, Qite ^{[1
,2
]}

Yang, XiaoFei ^{[1
,2
]}

Li, Jing ^{[1
,2
]}

Zang, HongLiang ^{[1
,2
]}

Liu, Qiang ^{[1
,2
]}

Jiang, Wei ^{[1
,2
]}

Li, ChenGuang ^{[1
,2
]}

Liu, Yang ^{[1
,2
]}

Chen, ZhiQiang ^{[1
,2
]}

Wu, HongYi ^{[1
,2
]}

Wang, ChunGuang ^{[1
,2
]}

Liu, Wei ^{[1
,2
]}

Wang, Xiang ^{[1
,2
]}

Li, JingJing ^{[1
,2
]}

Luo, DiWen ^{[1
,2
]}

Jiang, Ying ^{[1
,2
]}

Bai, ShiWei ^{[1
,2
]}

Xu, JinYan ^{[1
,2
]}

Ma, NanRu ^{[3
]}

Sun, LiJie ^{[3
]}

Wang, DongXi ^{[3
]}

机构：

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

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

[3] China Inst Atom Energy, Beijing 102413, Peoples R China

[4] Beihang Univ, Sch Phys & Nucl Energy Engn, Beijing 100191, Peoples R China

[5] Beihang Univ, Beijing Key Lab Adv Nucl Mat & Phys, Beijing 100191, Peoples R China

来源：

SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY | 2019年 / 62卷 / 01期

基金：

国家重点研发计划; 中国国家自然科学基金;

关键词：

inelastic excitation; monopole transition; cluster decay; NUCLEAR; STATES;

D O I：

10.1007/s11433-018-9258-7

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The inelastic excitations and cluster decay of C-13 have been measured using the reaction, Be-9(C-13,C-13* -> Be-9 + alpha)Be-9. We observe strong excitation to the 14.3-MeV (1/2(-)) resonant state from the cluster-decay channel, leading to an enhanced monopole matrix element of (6.3 +/- 0.6) fm(2). This large cluster-related monopole strength is a clear indication of the cluster-structure domination of this state and is consistent with the recent prediction of the orthogonality condition model (OCM). It would be interesting to further explore the three-center molecular rotational band that is initiated from the observed band-head.

引用

页数：7

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