  If the low energy cross section for 3He + p goes to 4He + e + nu_e, the `hep'
reaction, is > 20 times larger than the best (but uncertain) theoretical
estimates, then this reaction could significantly influence the electron energy
spectrum produced by solar neutrino interactions and measured in the
SuperKamiokande, SNO, and ICARUS experiments. We compare predicted energy
spectra for different assumed hep fluxes and different neutrino oscillation
scenarios with the observed SuperKamiokande spectrum. The spectra with enhanced
hep contributions provide better fits to the SuperKamiokande data.
