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
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.
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页数:5
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