Kinematically complete measurement of the H-1(F-18,p)F-18 excitation function for the astrophysically important 7.08-MeV state in Ne-19 - art. no. 042802

Authors
Bardayan, DW Blackmon, JC Bradfield-Smith, W Brune, CR Champagne, AE Davinson, T Johnson, BA Kozub, RL Lee, CS Lewis, R Parker, PD Shotter, AC Smith, MS Visser, DW Woods, PJ
Citation
Dw. Bardayan et al., Kinematically complete measurement of the H-1(F-18,p)F-18 excitation function for the astrophysically important 7.08-MeV state in Ne-19 - art. no. 042802, PHYS REV C, 6204(4), 2000, pp. 2802
Citations number
25
Categorie Soggetti
Physics
Journal title
PHYSICAL REVIEW C
ISSN journal
05562813 → ACNP
Volume
6204
Issue
4
Year of publication
2000
Database
ISI
SICI code
0556-2813(200010)6204:4<2802:KCMOTH>2.0.ZU;2-6
Abstract
Knowledge of the astrophysical F-18(p, alpha)O-15 rate is important for und erstanding gamma-ray emission from novae and heavy-element production in x- ray bursts. A state with E-x similar or equal to 7.08 MeV in Ne-19 provides an s-wave resonance and, depending on its properties,could dominate the F- 18(p, alpha)O-15 rate. By measuring a kinematically complete H-1(F-18, p)F- 18 excitation function with a radioactive F-18 beam at the ORNL Holifield R adioactive Ion Beam Facility, we find that the Ne-19 state lies at a center -of-mass energy of 665.3 +/- 1.7 keV (E-x = 7077 +/- 2 keV), has a total wi dth of 38.5 +/- 3.4 keV, and a proton partial-width of 15.8 +/- 1.6 keV.