Photodisintegration of Li6 below the He3-H3 threshold

A. Ghovanlou and F. Prats
Phys. Rev. C 10, 1309 – Published 1 October 1974

Abstract

The cross section for the photodisintegration reaction γ+Li6α+p+n has been calculated for photon energies from threshold (Eγ=3.70 MeV) up to Eγ=16 MeV utilizing dispersion theory methods. In this energy region, the dominant contribution to the transition amplitude results from diagrams characterized by the virtual breakups Li6α+d, Li6p(n)+Heg.s.5(Lig.s.5), and rescattering corrections. In the calculation, the coupling constant for the Li6α+d, vertex is obtained from an analysis of quasielastic cross sections for Li6(p,pd)He4. The Li6p+Heg.s.5 coupling constant is determined from an analysis of quasielastic cross section for Li6(p,2p)Heg.s.5. The predicted σ(γ,n) cross section agrees both in shape and magnitude with the experimental results. The calculated cross section integrated up to the H3-He3 threshold is 13.0 MeV mb, while experimentally it is found to be 12.4-14.6 MeV mb.

NUCLEAR REACTIONS Li6(γ,n), calculated σ(Eγ), Eγ=3.7015.8 MeV, dispersion theory.

    DOI:https://doi.org/10.1103/PhysRevC.10.1309

    ©1974 American Physical Society

    Authors & Affiliations

    A. Ghovanlou* and F. Prats

    • Department of Physics, The George Washington University, Washington, D.C. 20006

    • *Present address: The MITRE Corporation, McLean, Virginia.

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    Issue

    Vol. 10, Iss. 4 — October 1974

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