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

Citation
Jg. Del Campo et al., Decay of a resonance in Ne-18 by the simultaneous emission of two protons, PHYS REV L, 86(1), 2001, pp. 43-46
Citations number
17
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Physics
Journal title
PHYSICAL REVIEW LETTERS
ISSN journal
0031-9007 → ACNP
Volume
86
Issue
1
Year of publication
2001
Pages
43 - 46
Database
ISI
SICI code
0031-9007(20010101)86:1<43:DOARIN>2.0.ZU;2-3
Abstract
Radioactive ion beams of F-17 were used to study several resonance states i n 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-bo dy 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 a lso studied.