Evidence for the Ground-State Resonance of 26O

被引：97

作者：

Lunderberg, E. ^{[1
]}

DeYoung, P. A. ^{[1
]}

Kohley, Z. ^{[2
]}

Attanayake, H. ^{[3
]}

Baumann, T. ^{[2
]}

Bazin, D. ^{[2
]}

Christian, G. ^{[2
,4
]}

Divaratne, D. ^{[3
]}

Grimes, S. M. ^{[3
]}

Haagsma, A. ^{[5
]}

Finck, J. E. ^{[5
]}

Frank, N. ^{[6
]}

Luther, B. ^{[7
]}

Mosby, S. ^{[2
,4
]}

Nagi, T. ^{[1
]}

Peaslee, G. F. ^{[1
]}

Schiller, A. ^{[3
]}

Snyder, J. ^{[2
,4
]}

Spyrou, A. ^{[2
,4
]}

Strongman, M. J. ^{[2
,4
]}

Thoennessen, M. ^{[2
,4
]}

机构：

[1] Hope Coll, Dept Phys, Holland, MI 49423 USA

[2] Michigan State Univ, Natl Superconducting Cyclotron Lab, E Lansing, MI 48824 USA

[3] Ohio Univ, Dept Phys & Astron, Athens, OH 45701 USA

[4] Michigan State Univ, Dept Phys & Astron, E Lansing, MI 48824 USA

[5] Cent Michigan Univ, Dept Phys, Mt Pleasant, MI 48859 USA

[6] Augustana Coll, Dept Phys & Astron, Rock Isl, IL 61201 USA

[7] Concordia Coll, Dept Phys, Moorhead, MN 56562 USA

来源：

PHYSICAL REVIEW LETTERS | 2012年 / 108卷 / 14期

基金：

美国国家科学基金会;

关键词：

NEUTRON-RICH NUCLEI; PARTICLE STABILITY; SWEEPER MAGNET; ISOTOPES; FRAGMENTATION; SEARCH; CA-48;

D O I：

10.1103/PhysRevLett.108.142503

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Evidence for the ground state of the neutron-unbound nucleus O-26 was observed for the first time in the single proton-knockout reaction from a 82 MeV/u F-27 beam. Neutrons were measured in coincidence with O-24 fragments. O-26 was determined to be unbound by 150(-150)(+50) keV from the observation of low-energy neutrons. This result agrees with recent shell-model calculations based on microscopic two- and three-nucleon forces.

引用

页数：5

共 31 条

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