Elastic Proton Scattering of Medium Mass Nuclei from Coupled-Cluster Theory

Hagen, G.

doi:10.1103/PhysRevC.86.021602

Title: Elastic Proton Scattering of Medium Mass Nuclei from Coupled-Cluster Theory

Journal Article · Sun Jan 01 00:00:00 EST 2012 · Physical Review C

DOI:https://doi.org/10.1103/PhysRevC.86.021602· OSTI ID:1091695

Hagen, G. ^[1]

University of Tennessee (UTK) and Oak Ridge National Laboratory (ORNL)

Using coupled-cluster theory and interactions from chiral effective field theory, we compute overlap functions for transfer and scattering of low-energy protons on the target nucleus 40Ca. Effects of three-nucleon forces are included phenomenologically as in-medium two-nucleon interactions. Using known asymptotic forms for one-nucleon overlap functions we derive a simple and intuitive way of computing scattering observables such as elastic scattering phase shifts and cross sections. As a first application and proof of principle, we compute phase shifts and differential interaction cross sections at energies of 9.6 and 12.44 MeV and compare with experimental data. Our computed diffraction minima are in fair agreement with experimental results, while we tend to overestimate the cross sections at large scattering angles.

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Research Organization:: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States). Oak Ridge Leadership Computing Facility (OLCF)

Sponsoring Organization:: USDOE Office of Science (SC)

DOE Contract Number:: DE-AC05-00OR22725

OSTI ID:: 1091695

Journal Information:: Physical Review C, Vol. 86, Issue 2; ISSN 2469-9985

Publisher:: APS

Country of Publication:: United States

Language:: English

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