Single-particle resonance levels in 14O examined by 13N + p elastic resonance scattering
Single-particle resonance levels in 14O examined by 13N + p elastic resonance scattering
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DOI：
10.1016/j.physletb.2007.05.013
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发表时间：
2007-06
影响因子：
4.4
通讯作者：
T. Teranishi;S. Kubono;H. Yamaguchi;J. He;A. Saito;H. Fujikawa;G. Amadio;M. Niikura;S. Shimoura;Y. Wakabayashi;S. Nishimura;M. Nishimura;J. Moon;C. S. Lee;A. Odahara;D. Sohler;L. Khiem;Z. Li;G. Lian;Weiping Liu
中科院分区：
文献类型：
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作者：
T. Teranishi;S. Kubono;H. Yamaguchi;J. He;A. Saito;H. Fujikawa;G. Amadio;M. Niikura;S. Shimoura;Y. Wakabayashi;S. Nishimura;M. Nishimura;J. Moon;C. S. Lee;A. Odahara;D. Sohler;L. Khiem;Z. Li;G. Lian;Weiping Liu
通过利用 13N 二次束和厚质子靶的质子弹性共振散射技术，已经有效地研究了 14O 中低共振能级的单粒子性质。 N13+p 弹性散射的激发函数在 ECM=0.4–3.3 MeV 的宽能量范围内进行测量，并进行 R 矩阵计算。首次对 14O 中 Ex=6.767(11) MeV 的能级进行了明确的赋值 Jπ=2−。激发函数在 Ex=5.71(2) MeV 处显示新 0−能级的特征，且 Γ=400(100) keV。结合T=1的A=14核的光谱结构讨论14 O能级的激发能和宽度。
Single-particle properties of low-lying resonance levels in14O have been studied efficiently by utilizing a technique of proton elastic resonance scattering with a13N secondary beam and a thick proton target. The excitation functions for the N13+p elastic scattering were measured over a wide energy range of ECM=0.4–3.3 MeV and fitted with an R-matrix calculation. A clear assignment of Jπ=2−has been made for the level at Ex=6.767(11) MeV in14O for the first time. The excitation functions show a signature of a new 0−level at Ex=5.71(2) MeV with Γ=400(100) keV. The excitation energies and widths of the14O levels are discussed in conjunction with the spectroscopic structure of A=14 nuclei with T=1.