Microscopic optical potentials derived from ab initio translationally invariant nonlocal one-body densities

Abstract

We derive a microscopic optical potential for intermediate energies using ab initio translationally invariant nonlocal one-body nuclear densities computed within the no-core shell model (NCSM) approach utilizing two- and three-nucleon chiral interactions as the only input. The optical potential is derived at first-order within the spectator expansion of the non-relativistic multiple scattering theory by adopting the impulse approximation and using the same chiral nucleon-nucleon interaction as that used to compute densities. The ground state local and nonlocal densities of 4,6,8He, 12C, and 16O are calculated and applied to optical potential construction. The differential cross sections and the analyzing powers for the elastic proton scattering off of these nuclei are then calculated for different values of the incident proton energy. The impact of nonlocality and the COM removal is discussed. The use of nonlocal densities has a substantial impact on the differential cross sections and improves agreement with experiment in comparison to results generated with the local densities especially for light nuclei.

References in corpus (23)

• Chiral effective field theory and nuclear forces
• Similarity Renormalization Group for Nucleon-Nucleon Interactions
• Improved chiral nucleon-nucleon potential up to next-to-next-to-next-to-leading order
• DIRHB -- a relativistic self-consistent mean-field framework for atomic nuclei
• Local three-nucleon interaction from chiral effective field theory
• Evolution of Nuclear Many-Body Forces with the Similarity Renormalization Group
• Importance Truncation for Large-Scale Configuration Interaction Approaches
• Peripheral nucleon-nucleon scattering at fifth order of chiral perturbation theory
• Dawning of the N=32 shell closure seen through precision mass measurements of neutron-rich titanium isotopes
• Towards order-by-order calculations of the nuclear and neutron matter equations of state in chiral effective field theory
• Unitary Correlation Operator Method and Similarity Renormalization Group: Connections and Differences
• ${}^6$He nucleus in halo effective field theory
• Novel applications of the dispersive optical model
• Low Momentum Nucleon-Nucleon Interactions and Shell-Model Calculations
• ${}^4\mathrm{He}$+$n$+$n$ continuum within an ab initio framework
• Ab initio Translationally Invariant Nonlocal One-body Densities from No-core Shell-model Theory
• Polarized proton+${}^{4,6,8}$He elastic scattering with breakup effects in the eikonal approximation
• Optical Potentials Derived from Nucleon-Nucleon Chiral Potentials at N4LO
• Surface-peaked medium effects in the interaction of nucleons with finite nuclei
• Few body impulse and fixed scatterer approximations for high energy scattering
• Nucleon-nucleus scattering as a test of shell structure of some light mass exotic nuclei
• The n-n-alpha System in a Continuum Faddeev Formulation
• Functional medium-dependence of the nonrelativistic optical model potential

Cited by in corpus (27)

• A Guided Tour of Ab Initio Nuclear Many-Body Theory
• Recent developments for the optical model of nuclei
• Ab initio optical potentials and nucleon scattering on medium mass nuclei
• From bound states to the continuum
• Coupled-channels calculations for nuclear reactions: from exotic nuclei to superheavy elements
• Ab initio Folding Potentials for Nucleon-Nucleus Scattering based on NCSM One-Body Densities
• Effective density functionals beyond mean field
• Ab initio Leading Order Effective Potentials for Elastic Nucleon-Nucleus Scattering
• Exploring experimental conditions to reduce uncertainties in the optical potential
• Uncertainty quantification due to optical potentials in models for (d,p) reactions
• Impact of Three-Body Forces on Elastic Nucleon-Nucleus Scattering Observables
• Proton-Nucleus Elastic Scattering: Comparison between Phenomenological and Microscopic Optical Potentials
• Ab initio no-core shell model description of ${}^{10-14}$C isotopes
• Effects of nonlocality of nuclear potentials on direct capture reactions
• Elastic Antiproton-Nucleus Scattering from Chiral Forces
• Translationally invariant matrix elements of general one-body operators
• Chiral uncertainties in ab initio nucleon-nucleus elastic scattering
• Perspectives on Nuclear Structure and Scattering with the Ab Initio No-Core Shell Model
• Renormalization group evolution of optical potentials: explorations using a toy model
• Nuclear kinetic density from ab initio theory
• Spin dependent ab initio nonlocal No-Core Shell-Model One-Body Densities
• Coupled-cluster computations of optical potential for medium-mass nuclei
• Deuteron-${}^3\mathrm{He}$ scattering using nucleon-${}^3\mathrm{He}$ optical potentials fitted to four-body amplitudes
• Elastic proton scattering off non-zero spin nuclei
• Examination of the multiple-scattering expansion in the four-nucleon system
• Prediction of the analyzing power for $\vec{p}$+${}^6$He elastic scattering at 200 MeV from $\vec{p}$+${}^4$He elastic scattering at 200 MeV
• Comparative folding-model study of low-energy elastic scattering and fusion of the ${}^{12}$C+${}^{12}$C and ${}^{16}$O+${}^{16}$O systems