Document Type

Article

Publication Date

9-1-1968

Publication Title

The Astrophysical Journal

Publisher

The American Astronomical Society

Abstract

We investigate the possibility that in the astrophysically interesting energy range (i.e., well below the Coulomb barrier), the reaction 3He(3He,2p)4He proceeds predominantly by a neutron tunneling mechanism. Rough calculations of the magnitude and energy dependence of the total cross-section and of the shape of the proton differential cross-section are made on this basis. The results are in moderate agreement with recent experiments, and tend to justify a smooth extrapolation of these laboratory results down to the lower energies of astrophysical significance.

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