Low-energy photodisintegration of 9Be and alpha + alpha + n <-> 9Be + gamma reactions at astrophysical conditions

Details Low-energy photodisintegration of 9Be and alpha + alpha + n <-> 9Be + gamma reactions at astrophysical conditions Low-energy photodisintegration of 9Be and alpha + alpha + n <-> 9Be + gamma reactions at astrophysical conditions

1998-02-09

arxiv.org/abs/nucl-th/9802024v1

Eur.Phys.J. A1 (1998) 447-453

Physics

Nuclear Physics

Nuclear Theory

16 pages (uses revtex) and 3 postscript figures, accepted for publication in European Physical Journal A

Scientific paper

10.1007/s100500050079

A semi-microscopic model for the low-energy photodisintegration of the 9Be nucleus is constructed, and the experimental data are analyzed with its help. The older radioactive isotope data are supported by this analysis. The theoretical photodisintegration cross section is derived. The astrophysical rates for the reaction alpha + alpha + n -> 9Be + gamma and the reverse photodisintegration of 9Be are calculated. The new reaction rate for alpha + alpha + n -> 9Be + gamma is compared with previous estimations.

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