Cross section and resonance strength measurements of 19F(p, )16O at Ep = 200-800 keV
K. Spyrou1 - C. Chronidou1 - S. Harissopulos1 - S. Kossionides1 - T. Paradellis1 - C. Rolfs2 - W.H. Schulte2 - L. Borucki2
1 N.C.S.R. "Demokritos'', Institute of Nuclear Physics, Laboratory for Material Analysis,
153.10 Athens, Greece
2 Institut für Physik mit Ionenstrahlen, Ruhr-Universität-Bochum, Universitätsstrasse 150, 44780 Bochum, Germany
Received: 21 June 1999 / Revised version: 30 September 1999 Communicated by D. Schwalm
An excitation function of the 19F(p, O reaction has been measured over the proton beam energy range Ep=200-800 keV using a 4 NaI summing spectrometer. A new resonance was found at ER=237 keV and its properties , and have been extracted. The strengths of all resonances at Ep = 200 - 800 keV have been also extracted. The importance of the 1+ resonance at ER=11 keV is discussed and its width has been estimated taking into account interference effects with the strong 1+ resonance at ER=340 keV. The reaction rates have been calculated over a wide range of temperatures and compared with the rates of the (p, ) and (p, ) branches of the 19F(p, O reaction.
Copyright Società Italiana di Fisica, Springer-Verlag 2000