Electron Capture Cross Sections for Stellar Nucleosynthesis

Neutron Cross Sections for Nucleosynthesis Studies

Previous compilations of (n, γ ) cross sections of relevance for neutron capture nucleosynthesis in the big bang and in the slow neutron capture process (s process) have been updated to encompass information available up to December 1998; data references include work in process then and published subsequently. The experimental results for nuclei between H and Bi were critically surveyed, renorm...

Theoretical Neutron-capture Cross Sections for R-process Nucleosynthesis in the 48ca Region

We calculate neutron capture cross sections for r-process nucleosynthesis in the 48 Ca region, namely for the isotopes 40?44 S, 46?50 Ar, 56?66 Ti, 62?68 Cr, and 72?76 Fe. While previously only cross sections resulting from the compound nucleus reaction mechanism (Hauser-Feshbach) have been considered, we recalculate not only that contribution to the cross section but also include direct captur...

Reevaluation of electron-capture cross sections in C1 H collisions

We calculated the total electron-capture cross section for collisions of C ions with atomic hydrogen in the energy range of 10–2000 eV/nucleon using the close-coupling two-center atomic orbital expansion method. Various basis sets have been used to check the convergence of the calculation and the results are shown to be in general agreement with existing experimental data. However, we found no ...

Electron-collision cross sections for iodine

O. Zatsarinny,1 K. Bartschat,1 G. Garcia,2 F. Blanco,3 L. R. Hargreaves,4 D. B. Jones,4 R. Murrie,4 J. R. Brunton,4 M. J. Brunger,4,5 M. Hoshino,6 and S. J. Buckman7 1Department of Physics and Astronomy, Drake University, Des Moines, Iowa 50311, USA 2Instituto de Fisica Fundamental, Consejo Superior de Investigaciones Cientificas, Madrid E-28006, Spain 3Departamento de Fisica Atómica, Molecular...

Cross Sections for Electron Collisions with NF3