Total 4He Photoabsorption Cross Section Revisited: Correlated HH versus Effective Interaction HH

Abstract

Two conceptually different hyperspherical harmonics expansions are used for the calculation of the total 4He photoabsorption cross section. Besides the well known method of CHH the recently introduced effective interaction approach for the hyperspherical formalism is applied. Semi-realistic NN potentials are employed and final state interaction is fully taken into account via the Lorentz integral transform method. The results show that the effective interaction leads to a very good convergence, while the correlation method exhibits a less rapid convergence in the giant dipole resonance region. The rather strong discrepancy with the experimental photodisintegration cross sections is confirmed by the present calculations.

LaTeX, 7 pages, 3 ps figures

References in corpus (3)

• Modern nuclear force predictions for the alpha particle
• State Dependent Effective Interaction for the Hyperspherical Formalism
• Photodisintegration of Three-Body Nuclei with Realistic 2N and 3N Forces

Cited by in corpus (17)

• The Lorentz Integral Transform (LIT) method and its applications to perturbation induced reactions
• Modern Ab Initio Approaches and Applications in Few-Nucleon Physics with A \ge 4
• alpha-particle photoabsorption with a realistic nuclear force
• Simultaneous measurement of the photodisintegration of 4He in the giant dipole resonance region
• Total Photoabsorption Cross Sections of A=6 Nuclei with Complete Final State Interaction
• The ${}^4$He total photo-absorption cross section with two- plus three-nucleon interactions from chiral effective field theory
• Two-body Photodisintegration of ${}^4$He with Full Final State Interaction
• Neutrino neutral reaction on 4He, effects of final state interaction and realistic NN force
• The ${}^4$He$(e,e^{\prime }p{)}^3$H Reaction with Full Final--State Interaction
• Nonsymmetrized hyperspherical harmonics with realistic NN potentials
• Uncertainty quantification in electromagnetic observables of nuclei
• Case study: calculation of a narrow resonance with the LIT method
• Energy Resolution with the Lorentz integral transform
• Ab initio calculation of the 4He(e,e'd)d reaction
• Complex scaling method for three- and four-body scattering above the break-up thresholds
• Electromagnetic reactions of few-body systems with the Lorentz integral transform method
• Theoretical study of the ${}^4\mathrm{He}(\gamma ,\mathrm{p}{)}^3\mathrm{H}$ and ${}^4\mathrm{He}(\gamma ,\mathrm{n}{)}^3\mathrm{He}$ reactions