Decay of a resonance in 18Ne by the simultaneous emission of two protons

被引：119
作者：
del Campo, JG [1 ]
Galindo-Uribarri, A
Beene, JR
Gross, CJ
Liang, JF
Halbert, ML
Stracener, DW
Shapira, D
Varner, RL
Chavez-Lomeli, E
Ortiz, ME
机构：
[1] Oak Ridge Natl Lab, Div Phys, Oak Ridge, TN 37831 USA
[2] Oak Ridge Inst Sci & Educ, Oak Ridge, TN 37831 USA
[3] Univ Nacl Autonoma Mexico, Inst Fis, Mexico City 01000, DF, Mexico
来源：
PHYSICAL REVIEW LETTERS | 2001年 / 86卷 / 01期
关键词：
D O I：
10.1103/PhysRevLett.86.43
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Radioactive ion beams of F-17 were used to study several resonance states in Ne-18. Clear evidence for simultaneous two-proton emission from the 6.15 MeV state (J(pi) = l(-)) in Ne-18 has been observed with the reaction F-17 + H-1. Because of limited angular coverage, the data did not differentiate between the two possible mechanisms of simultaneous decay, diproton (He-2) emission or direct three-body decay. The two-proton partial width was found to be 21 +/- 3 eV assuming He-2 emission and 57 +/- 6 eV assuming three-body decay. The total width of the l(-) state was measured to be 50 +/- 5 keV. Several additional resonances that decay by single proton emission were also studied.
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收藏
页码：43 / 46
页数：4
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