Evidence for a new 12C state at 13.3 MeV

被引：105

作者：

Freer, M. ^{[1
]}

Almaraz-Calderon, S. ^{[2
]}

Aprahamian, A. ^{[2
]}

Ashwood, N. I. ^{[1
]}

Barr, M. ^{[1
]}

Bucher, B. ^{[2
]}

Copp, P. ^{[3
]}

Couder, M. ^{[2
]}

Curtis, N. ^{[1
]}

Fang, X. ^{[2
]}

Jung, F. ^{[2
]}

Lesher, S. ^{[3
]}

Lu, W. ^{[2
]}

Malcolm, J. D. ^{[1
]}

Roberts, A. ^{[2
]}

Tan, W. P. ^{[2
]}

Wheldon, C. ^{[1
]}

Ziman, V. A. ^{[1
]}

机构：

[1] Univ Birmingham, Sch Phys & Astron, Birmingham B15 2TT, W Midlands, England

[2] Univ Notre Dame, Dept Phys, Inst Struct & Nucl Astrophys, Notre Dame, IN 46556 USA

[3] Univ Wisconsin, Dept Phys, La Crosse, WI 54601 USA

来源：

PHYSICAL REVIEW C | 2011年 / 83卷 / 03期

关键词：

D O I：

10.1103/PhysRevC.83.034314

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：

The two reactions C-12(He-4, He-4+He-4+He-4)He-4 and Be-9(He-4, He-4+He-4+He-4)n were measured using an array of four double-sided strip detectors. Excited states in C-12 were reconstructed filtered by the condition that the a-decay proceeded via the Be-8 ground state. In both measurements, evidence was found for a new state at 13.3(0.2) MeV with a width 1.7(0.2) MeV. Angular correlation measurements from the C-12(He-4, He-4+He-4+He-4)He-4 reaction indicates that the state may have J(pi) = 4(+).

引用

页数：7

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