Which solar neutrino experiment after KamLAND and Borexino?
Alessandro Strumia, Francesco Vissani
Abstract
We estimate how well we will know the parameters of solar neutrino oscillations after KamLAND and Borexino. The expected error on Delta m2 is few per-mille in the VO and QVO regions, few per-cent in the LMA region, and around 10% in the LOW region. The expected error on sin2 2theta is around 5%. KamLAND and Borexino will tell unambiguously which specific new measurement, dedicated to pp solar neutrinos, is able to contribute to the determination of theta and perhaps of Delta m2. The present data suggest as more likely outcomes: no measurement, or the total pp rate, or its day/night variation.
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