title: First Direct Measurement of the 17F(p,gamma)18Ne Cross Section.
abstract: The rate of the (17)F(p,gamma)(18)Ne reaction is important in various astrophysical events. A previous (17)F(p,p)(17)F measurement identified a 3;{+} state providing the strongest resonance contribution, but the resonance strength was unknown. We have directly measured the (17)F(p,gamma)(18)Ne reaction using a mixed beam of (17)F and (17)O at ORNL. The resonance strength for the 3;{+} resonance in (18)Ne was found to be omegagamma = 33 +/- 14(stat) +/-1 7(syst) meV, corresponding to a gamma width of Gamma_{gamma} = 56 +/- 24(stat) +/- 30(syst) meV. An upper limit on the direct capture of S(E) <or= 65 keV b was determined at an energy of 800 keV.
authors.affiliation: Colorado School of Mines, Golden, Colorado 80401, USA.
authors.forename: K A
authors.initials: KA
authors.lastname: Chipps
authors.forename: D W
authors.initials: DW
authors.lastname: Bardayan
authors.forename: J C
authors.initials: JC
authors.lastname: Blackmon
authors.forename: K Y
authors.initials: KY
authors.lastname: Chae
authors.forename: U
authors.initials: U
authors.lastname: Greife
authors.forename: R
authors.initials: R
authors.lastname: Hatarik
authors.forename: R L
authors.initials: RL
authors.lastname: Kozub
authors.forename: C
authors.initials: C
authors.lastname: Matei
authors.forename: B H
authors.initials: BH
authors.lastname: Moazen
authors.forename: C D
authors.initials: CD
authors.lastname: Nesaraja
authors.forename: S D
authors.initials: SD
authors.lastname: Pain
authors.forename: W A
authors.initials: WA
authors.lastname: Peters
authors.forename: S T
authors.initials: ST
authors.lastname: Pittman
authors.forename: J F
authors.initials: JF
authors.lastname: Shriner
authors.forename: M S
authors.initials: MS
authors.lastname: Smith