Richard A. Brandenburg

Two-body photodisintegration of 3H and 3He near the giant resonance: (I). Plane-wave approximation☆

A concise survey of the current status of two-body photodisintegration of the trinucleons in the region of the giant resonance is presented. Calculations neglecting both final-state interactions (FSI) and M1 transitions are presented using the Reid soft-core, Paris and Bonn potentials. D-wave contributions to these reactions are not in agreement in the literature. The present results indicate that approximately (10±4)% of the cross section is due to constructive transitions involving the D-waves. Furthermore, E2 contributions at a photon excitation energy of ∼ 12.5 MeV are found to be approximately 2% for 3He(γ,p)d and 0.1% for 3H(γ,n)d. In addition, fore-aft asymmetry calculations indicate markedly different contributions from E1–E2 interference in a comparison of the 3He and 3H systems.

Two-body photodisintegration of 3 H and 3 He near the giant resonance

A concise survey of the current status of two-body photodisintegration of the trinucleons in the region of the giant resonance is presented. Calculations neglecting both final-state interactions (FSI) and M1 transitions are presented using the Reid soft-core, Paris and Bonn potentials. D-wave contributions to these reactions are not in agreement in the literature. The present results indicate that approximately (10±4)% of the cross section is due to constructive transitions involving the D-waves. Furthermore, E2 contributions at a photon excitation energy of ∼ 12.5 MeV are found to be approximately 2% for 3He(γ,p)d and 0.1% for 3H(γ,n)d. In addition, fore-aft asymmetry calculations indicate markedly different contributions from E1–E2 interference in a comparison of the 3He and 3H systems.

Probability of the interior six-quark compound states in 3He and 3H determined from electron scattering data☆

Abstract The upper limits of probability of the interior six-quark compound states in 3 He and 3 H are determined from the experimental data for the 3 He and 3 H charge form factors using Friars method. We find that this method overestimates the probability and is not reliable.