Dispersion relations applied to double-folding potentials from chiral EFT

Abstract

We present a determination of optical potentials using the double-folding method based on chiral effective field theory nucleon-nucleon interactions at next-to-next-to-leading order combined with dispersion relations to constrain the imaginary part. This approach is benchmarked on ${}^{16}$O--${}^{16}$O collisions, and extended to the ${}^{12}$C--${}^{12}$C and ${}^{12}$C--${}^{16}$O cases. Predictions derived from these potentials are compared to data for elastic scattering at energies up to 1000 MeV, as well as for fusion at low energy. Without adjusting parameters, excellent agreement with experiment is found. In addition, we study the sensitivity of the corresponding cross sections to the nucleon-nucleon interactions and nuclear densities used.

References in corpus (18)

• Modern Theory of Nuclear Forces
• Chiral effective field theory and nuclear forces
• A program for coupled-channels calculations with all order couplings for heavy-ion fusion reactions
• Toward a global description of the nucleus-nucleus interaction
• Subbarrier fusion reactions and many-particle quantum tunneling
• Three-body forces: From cold atoms to nuclei
• Quantum Monte Carlo Calculations with Chiral Effective Field Theory Interactions
• Chiral Three-Nucleon Interactions in Light Nuclei, Neutron-$\alpha$ Scattering, and Neutron Matter
• Local chiral effective field theory interactions and quantum Monte Carlo applications
• Quantum Monte Carlo calculations of neutron matter with chiral three-body forces
• Quantum Monte Carlo calculations of light nuclei with local chiral two- and three-nucleon interactions
• Quantum Monte Carlo Calculations of Light Nuclei Using Chiral Potentials
• A simple analytic model for astrophysical S-factors
• Global optical potential for nucleus-nucleus systems from 50 MeV/u to 400 MeV/u
• Analyzing the Fierz Rearrangement Freedom for Local Chiral Two-Nucleon Potentials
• Double-folding potentials from chiral effective field theory
• Direct and indirect $\alpha$ transfer in the elastic ${}^{16}$O+${}^{12}$C scattering
• Microscopic coupled-channel calculations of nucleus-nucleus scattering including chiral three-nucleon-force effects

Cited by in corpus (7)

• Optical potentials for the rare-isotope beam era
• $\alpha$-cluster structures above double shell closures via double-folding potentials from chiral effective field theory
• Combining Halo-EFT descriptions of nuclei and precise models of nuclear reactions
• Exploring sensitivity of charge-exchange ($p,n$) reactions to the neutron density distribution
• Localization of peripheral reactions and sensitivity to the imaginary potential
• $\alpha$-nucleus optical potentials from chiral effective field theory $NN$ interactions
• First experimental test of the ratio method for nuclear-reaction analysis