Description of the 17F(p,gamma)18Ne radiative capture reaction in the continuum shell model

Abstract

The shell model embedded in the continuum is applied to calculate the astrophysical S-factor and the reaction rate for the radiative proton capture reaction 17F(p,gamma)18Ne. The dominant contribution to the cross-section at very low energies is due to M1 transitions J_i^pi = 2^+ --> J_f^pi = 2_1^+ whose magnitude is controlled by a weakly bound 2_2^+ state at the excitation energy E_x = 3.62 MeV.

arXiv comment31 pages, latex (uses elsart.cls), 14 figures, submitted to Nuclear Physics A

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• Open problems in theory of nuclear open quantum systems
• Simplified modeling of cluster-shell competition in ${}^{20}$Ne and ${}^{24}$Mg
• Exceptional points in the scattering continuum
• Spectroscopic factors, overlaps, and isospin symmetry from an $R$-matrix point of view
• Beam energy dependence of Coulomb-nuclear interference in the breakup of 11Be
• Reply to comments on `Structure effects in the ${}^{15}$N($n,\gamma$)${}^{16}$N radiative capture reaction from the Coulomb dissociation of ${}^{16}$N'