title: Unknowns after the SNO charged-current measurement.
abstract: We perform a model-independent analysis of solar neutrino flux rates including the recent charged-current measurement at the Sudbury Neutrino Observatory (SNO). We derive a universal sum rule involving SNO and SuperKamiokande rates, and show that the SNO neutral-current measurement cannot fix the fraction of solar nu(e) oscillating to sterile neutrinos. The large uncertainty in the standard solar model (8)B flux impedes a determination of the sterile neutrino fraction.
authors.affiliation: Department of Physics, University of Wisconsin-Madison, Madison, WI 53706, USA.
authors.forename: V
authors.initials: V
authors.lastname: Barger
authors.forename: D
authors.initials: D
authors.lastname: Marfatia
authors.forename: K
authors.initials: K
authors.lastname: Whisnant