Theoretical Optical Potential Derived From Nucleon-Nucleon Chiral Potentials

Abstract

Background: Elastic scattering is probably the main event in the interactions of nucleons with nuclei. Even if this process has been extensively studied in the last years, a consistent description, i.e. starting from microscopic two- and many-body forces connected by the same symmetries and principles, is still under development. Purpose: In this work we study the domain of applicability of microscopic two-body chiral potentials in the construction of an optical potential. Methods: We basically follow the KMT approach to build a microscopic complex optical potential and then we perform some test calculations on 16O at different energies. Results: Our conclusion is that a particular set of potentials with a Lippmann-Schwinger cutoff at relatively high energies (above 500 MeV) has the best performances reproducing the scattering observables. Conclusions: Our work shows that building an optical potential within Chiral Perturbation Theory is a promising approach to the description of elastic proton scattering, in particular, in view of the future inclusion of many-body forces that naturally arise in such framework.

15 pages and 12 figures. Accepted version (Physical Review C) with major changes in Sect. III and IV and new figures (5,10,11,12)

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• Chiral effective field theory and nuclear forces
• Precision nucleon-nucleon potential at fifth order in the chiral expansion
• DIRHB -- a relativistic self-consistent mean-field framework for atomic nuclei
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Cited by in corpus (28)

• Recent developments for the optical model of nuclei
• Ab initio optical potentials and nucleon scattering on medium mass nuclei
• Novel applications of the dispersive optical model
• Microscopic optical potentials derived from ab initio translationally invariant nonlocal one-body densities
• Proton elastic scattering on calcium isotopes from chiral nuclear optical potentials
• Implementing chiral three-body forces in terms of medium-dependent two-body forces
• Double-folding potentials from chiral effective field theory
• Impact of Three-Body Forces on Elastic Nucleon-Nucleus Scattering Observables
• Proton-Nucleus Elastic Scattering: Comparison between Phenomenological and Microscopic Optical Potentials
• SWANLOP : Scattering waves off nonlocal optical potentials in the presence of Coulomb interactions
• Optical Potentials Derived from Nucleon-Nucleon Chiral Potentials at N4LO
• Irreducible nonlocality of optical model potentials based on realistic NN interactions
• Neutron elastic scattering on calcium isotopes from chiral nuclear optical potentials
• Microscopic optical potential from the relativistic Brueckner-Hartree-Fock theory: Proton-nucleus scattering
• Elastic Antiproton-Nucleus Scattering from Chiral Forces
• Combining Halo-EFT descriptions of nuclei and precise models of nuclear reactions
• Energy-independent optical ${}^1{S}_{0}NN$ potential from Marchenko equation
• Self-consistent single-nucleon potential at positive energy produced by semi-realistic interaction and its examination via nucleon-nucleus elastic scattering
• Renormalization group evolution of optical potentials: explorations using a toy model
• Energy-independent complex single $P$-waves $NN$ potential from Marchenko equation
• Ultraviolet suppression and nonlocality in optical model potentials for nucleon-nucleus scattering
• Optical potentials, retarded Green's functions and nonorthogonality
• Microscopic Optical Potentials: recent achievements and future perspectives
• Bridging reaction theory and nuclear structure in ${\pi }^{\pm }$-${}^{48}$Ca scattering
• Coupled-cluster computations of optical potential for medium-mass nuclei
• Proton radioactivity in deformed nuclei with microscopic optical potential: A novel angular-dependent emission mechanism in the nanosecond-lived ${}^{149}$Lu
• Elastic proton scattering off non-zero spin nuclei
• Assessment of effect of local approximation on single folding potential at low and intermediate incident energies