Two-Body Photodisintegration ofHe3
- 20 April 1968
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 168 (4), 1095-1101
- https://doi.org/10.1103/PhysRev.168.1095
Abstract
A discussion and comparison of the two forms of interaction, A·p and E·r, is given for two-body photodisintegration of . It is shown that in general the E·r results are much better than the A·p results. Calculations are carried out to 140 MeV to compare with recent data. The Gunn-Irving wave function gives a good fit to the total cross section at all energies, but fails to account for the ground-state matter form factor. A simple three-nucleon ground-state wave function is suggested which adequately reproduces the Coulomb energy, rms radius, and matter form factor (for ) of , but predicts a photodisintegration cross section which is 20% small at the peak, assuming no final-state interactions. The spin magnetic-moment interaction, which Verde has shown is forbidden in the dipole approximation for transitions from a spatially symmetric ground state, is computed without this approximation and is shown to contribute only 1-10% of the total cross section, the larger amount only at high energies.
Keywords
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