Compilation and Evaluation of Alpha-Induced Nuclear Reaction Cross Sections For Astrophysics

Svetlana DUNAEVA1, Victoria MCLANE2,*, Pavel OBLOZINSKY2, Alejandro SONZOGNI2, Michael S. SMITH3

1Russian Federal Nuclear Center - VNIIEF 607190, pr. Mira, 37, Sarov, Nizhii Novgorod region, Russia
2Brookhaven National Laboratory, Upton, NY 11973-5000, U.S.A.
3Oak Ridge National Laboratory, Oak Ridge, TN 37831-6354, U.S.A.

Nucleosynthesis and energy production in stellar environments depend critically on nuclear reaction cross sections. Reactions induced by alpha particles are important in the helium burning stage of stars, novae, and supernovae events. They involve light to medium weight nuclei up to about Z=32, and center-of-mass energies up to about 20 MeV. We are working on a project to compile and evaluate cross section data for alpha-induced reactions. These data will eventually be used to derive α-nucleus potential parameters.

KEYWORDS: alpha-induced reactions, alpha optical-model potentials, evaluated data, experimental data, nuclear astrophysics