New 19Ne level observed with a thick target 18F(p,p)18F measurement

D. W. Bardayan, J. C. Blackmon, J. Gómez del Campo, R. L. Kozub, J. F. Liang, Z. Ma, L. Sahin, D. Shapira, M. S. Smith

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2 Scopus citations


The rates of the 18F(p, α)15O and 18F(p, γ)19Ne reactions in astrophysical environments depend on the properties of 19Ne levels above the 18F + p threshold. There are at least 8 levels in the mirror nucleus 19F for which analogs have not been observed in 19Ne in the excitation energy range Ex = 6.4 - 7.6 MeV. These levels may significantly enhance the 18F + p reaction rates, and thus we have made a search for these levels by measuring the 1H(18F,p)18F excitation function over the energy range Ec.m. = 0.3 - 1.3 MeV. We have identified and measured the properties of a newly observed level at Ex = 7.420 ± 0.014 MeV, which is most likely the mirror to the Jπ = 7/2+ 19F level at 7.56 MeV. We have additionally found a significant discrepancy with a recent compilation for the properties of a 19Ne state at Ex = 7.5 MeV and set upper limits on the proton widths of missing levels.

Original languageEnglish
Pages (from-to)737-740
Number of pages4
JournalNuclear Physics A
Issue number1-4 SPEC. ISS.
StatePublished - 25 Jul 2005
Externally publishedYes

ASJC Scopus subject areas

  • Nuclear and High Energy Physics


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