Title of article
Measurement of the 18F(p,α)15O cross section at nova energies Original Research Article
Author/Authors
D.W. Bardayan، نويسنده , , J.C. Batchelder، نويسنده , , J.C. Blackmon، نويسنده , , A.E. Champagne، نويسنده , , T. Davison، نويسنده , , R. Fitzgerald، نويسنده , , W.R. Hix، نويسنده , , C. Iliadis، نويسنده , , R.L. Kozub، نويسنده , , Z. Ma، نويسنده , , S. Parete-Koon، نويسنده , , P.D. Parker، نويسنده , , E. N. Shu، نويسنده , , M.S. Smith، نويسنده , , P.J. Woods، نويسنده ,
Issue Information
هفته نامه با شماره پیاپی سال 2003
Pages
3
From page
590
To page
592
Abstract
Production of the radioisotope 18F in novae is severely constrained by the rate of the 18F(p,α)15O reaction. A resonance at Ec.m. = 330 keV may strongly enhance the 18F(p,α)15O reaction rate, but its strength has been very uncertain. We have determined the strength of this important resonance by measuring the 18F(p,α)15O cross section on- and off-resonance using a radioactive 18F beam at ORNLʹs Holifield Radioactive Ion Beam Facility. We find that its resonance strength is 1.48 ± 0.46 eV, and that it dominates the 18F(p,α)15O reaction rate over a significant range of temperatures characteristic of nova outbursts occuring on ONeMg white dwarfs.
Journal title
Nuclear physics A
Serial Year
2003
Journal title
Nuclear physics A
Record number
1199323
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