2012/06/11 by G. Hagen, N. Michel · 2 citations
Chemistry · Mathematics · Physics and Astronomy · #Advanced NMR Techniques and Applications #Atomic physics #Cluster (spacecraft) #Effective field theory #Elastic scattering #Mathematical analysis #Mathematics #Maxima and minima #Nuclear physics #Nuclear physics research studies #Nucleon #Observable #Phase (matter) #Physics #Proton #Quantum Chromodynamics and Particle Interactions #Quantum mechanics #Scattering #Scattering length #Scattering theory #nucl-ex #nucl-th
paper · pdf · doi:10.1103/physrevc.86.021602
published as Phys. Rev. C 86, 021602(R) (2012) · 5 pages, 6 figures
arxiv created 2012/06/11 · openalex publication_date 2012/08/13 · arxiv updated 2012/08/14 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
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.