Asymptotic normalization coefficient method for two-proton radiative capture
Journal article, 2020
The method of asymptotic normalization coefficients is a standard approach for studies of two-body non-resonant radiative capture processes in nuclear astrophysics. This method suggests a fully analytical description of the radiative capture cross section in the low-energy region of the astrophysical interest. We demonstrate how this method can be generalized to the case of three-body 2p radiative captures. It was found that an essential feature of this process is the highly correlated nature of the capture. This reflects the complexity of three-body Coulomb continuum problem. Radiative capture 15O+p+p→17Ne+γ is considered as an illustration.
Asymptotic normalization coefficient method
Two-proton nonresonant radiative capture
E1 strength function
Three-body hyperspherical harmonic method
Author
L Grigorenko
National Research Nuclear University
National Research Centre "Kurchatov Institute"
Joint Institute for Nuclear Research (JINR)
Y. L. Parfenova
Joint Institute for Nuclear Research (JINR)
N. B. Shulgina
Joint Institute for Nuclear Research (JINR)
National Research Centre "Kurchatov Institute"
Mikhail Zhukov
Chalmers, Physics
Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
0370-2693 (ISSN)
Vol. 811 135852Subject Categories
Atom and Molecular Physics and Optics
Other Physics Topics
Probability Theory and Statistics
DOI
10.1016/j.physletb.2020.135852