Evidence for the ground-state resonance of 26O.
Evidence for the ground-state resonance of 26O.
复制标题
26O 基态共振的证据。
DOI：
10.1103/physrevlett.108.142503
复制
发表时间：
2012
影响因子：
8.6
通讯作者：
M. Thoennessen
中科院分区：
文献类型：
--
作者：
E. Lunderberg;P. DeYoung;Z. Kohley;H. Attanayake;T. Baumann;D. Bazin;G. Christian;D. Divaratne;S. Grimes;A. Haagsma;J. Finck;N. Frank;B. Luther;S. Mosby;T. Nagi;G. Peaslee;A. Schiller;J. Snyder;A. Spyrou;M. Strongman;M. Thoennessen
在82 MeV/u（27）F束流的单质子敲除反应中首次观察到了未束缚中子的核（26）O基态的证据。中子与（24）O碎片同时测量。(26)O根据低能中子的观测，确定在150（-150）（+50）keV时未结合。这一结果与最近的壳模型计算的基础上微观两个和三个核子力。
Evidence for the ground state of the neutron-unbound nucleus (26)O was observed for the first time in the single proton-knockout reaction from a 82 MeV/u (27)F beam. Neutrons were measured in coincidence with (24)O fragments. (26)O 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.