The F-17(p, gamma)Ne-18 direct capture cross section
Yazar
Yu, CH
Sahin, Latife
Gagliardi, CA
Greife, U
Gross, CJ
Hausladen, PA
Iliadis, C
Jewett, CC
Kozub, RL
Lewis, TA
Liang, F
Moazen, BH
Mukhamedzhanov, AM
Nesaraja, CD
Nunes, FM
Parker, PD
Radford, DC
Scott, JP
Shapira, D
Smith, MS
Thomas, JS
Trache, L
Tribble, RE
Woods, PJ
Blackmon, JC
Bardayan, DW
Brune, CR
Carstoiu, F
Champagne, AE
Crespo, R
Davinson, T
Fernandes, JC
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The F-17(p,gamma)Ne-18 reaction is important for understanding nucleosynthesis in novae. This reaction rate is expected to be dominated by the unmeasured direct-capture cross section at nova temperatures. We have measured cross sections for the proton-transfer reaction N-14(F-17,Ne-18)C-13 to determine F-17+p asymptotic normalization coefficients for Ne-18 bound states and the F-17(p,gamma)Ne-18 direct-capture cross section. Elastic scattering cross sections for the N-14(F-17,F-17)N-14 and C-12(F-17,F-17)C-12 reactions were also measured and used to determine reliable optical-model parameters within the framework of a microscopic double-folding model. Here we present the technique and some preliminary results.
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