Ab Initio Many-Body Calculations of n-3H, n-4He, p-{3,4}He, and n-10Be Scattering

Abstract

We develop a new ab initio many-body approach capable of describing simultaneously both bound and scattering states in light nuclei, by combining the resonating-group method with the use of realistic interactions, and a microscopic and consistent description of the nucleon clusters. This approach preserves translational symmetry and Pauli principle. We present phase shifts for neutron scattering on 3H, 4He and 10Be and proton scattering on {3,4}He, using realistic nucleon-nucleon potentials. Our A=4 scattering results are compared to earlier ab initio calculations. We demonstrate that a proper treatment of the coupling to the n-10Be continuum is essential to explain the parity-inverted ground state in 11Be.

4 pages, 6 figures

References in corpus (4)

• Quantum Monte Carlo calculations of neutron-alpha scattering
• Four-nucleon scattering: Ab initio calculations in momentum space
• Large basis ab initio shell model investigation of 9-Be and 11-Be
• Four-body calculation of proton-3He scattering

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