LI-8 ELECTRON SPECTRUM VERSUS B-8 NEUTRINO SPECTRUM - IMPLICATIONS FOR MEASURING SOLAR NEUTRINOS WITH A HEAVY-WATER DETECTOR

The sensitivity of the Sudbury Neutrino Observatory (SNO) to measure t he shape of the recoil electron spectrum in the charged-current reacti on of B-8 solar neutrinos interacting with deuterium can be improved i f the results of a Li-8 beta-decay calibration experiment are included in the test. We calculate an improvement in sensitivity, under certai n idealistic assumptions, of about a factor of 2, sufficient to resolv e different neutrino-oscillation solutions to the solar-neutrino probl em. We further examine the role of recoil and radiative corrections on both the B-8 neutrino spectrum and the Li-8 electron spectrum and con clude that the influence of these effects on the ratio of the two spec tra as measured by the SNO is very small.