Possibility of a two-proton halo in 17Ne
Possibility of a two-proton halo in 17Ne
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DOI：
10.1016/j.physletb.2003.07.050
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发表时间：
2003-10
影响因子：
4.4
通讯作者：
R. Kanungo;M. Chiba;S. Adhikari;D. Fang;N. Iwasa;K. Kimura;K. Maeda;S. Nishimura;Y. Ogawa;T. Ohnishi;A. Ozawa;C. Samanta;T. Suda;T. Suzuki;Q. Wang;C. Wu;Y. Yamaguchi;K. Yamada;A. Yoshida;T. Zheng;I. Tanihata
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文献类型：
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作者：
R. Kanungo;M. Chiba;S. Adhikari;D. Fang;N. Iwasa;K. Kimura;K. Maeda;S. Nishimura;Y. Ogawa;T. Ohnishi;A. Ozawa;C. Samanta;T. Suda;T. Suzuki;Q. Wang;C. Wu;Y. Yamaguchi;K. Yamada;A. Yoshida;T. Zheng;I. Tanihata
报告了 Be 目标为 66 A MeV 时对两个质子去除、横截面和动量分布的首次测量。动量分布显示宽度为 168±17 MeV/c (FWHM)，比正常原子核预期的宽度 (∼290 MeV/c) 窄得多。质子去除截面已确定为 191±48 mb。对现有数据以及相互作用截面的分析表明两个价质子的显着横波概率。这表明 17Ne 中存在两个质子晕。
The first measurement of the two proton removal, cross section and momentum distribution, with a Be target at 66 A MeV are reported. The momentum distribution shows a width of 168±17 MeV/c (FWHM) that is much narrower than the width expected from a normal nucleus (∼290 MeV/c). The proton removal cross-section has been determined to be 191±48 mb. Analysis of present data together with interaction cross section indicates significant s-wave probability of the two valence protons. This suggests a two-proton halo in17Ne.