The Al-27(p, gamma)Si-28 reaction: direct capture cross-section and resonance strengths at E-p=0.2-1.12 MeV

Authors
Harissopulos, S Chronidou, C Spyrou, K Paradellis, T Rolfs, C Schulte, WH Becker, HW
Citation
S. Harissopulos et al., The Al-27(p, gamma)Si-28 reaction: direct capture cross-section and resonance strengths at E-p=0.2-1.12 MeV, EUR PHY J A, 9(4), 2000, pp. 479-489
Citations number
36
Categorie Soggetti
Physics
Journal title
EUROPEAN PHYSICAL JOURNAL A
ISSN journal
14346001 → ACNP
Volume
9
Issue
4
Year of publication
2000
Pages
479 - 489
Database
ISI
SICI code
1434-6001(200012)9:4<479:TAGRDC>2.0.ZU;2-Y
Abstract
The Al-27(p, gamma)Si-28 reaction has been investigated using two different 4 pi NaI summing detectors. The strength of 26 resonances in the energy ra nge from 200 to 1120 keV has been measured. In addition, yield measurements have been carried out at 9 beam energies in the 490 to 1150 keV range in o rder to determine the direct capture cross-section. The existing data on th e non-resonant mechanism were analysed and combined with the results of the present work. The resulting resonance strengths as well as the deduced dir ect capture astrophysical S-factor are compared with previous work.