Comparison of LMA and LOW solar solution predictions in an SO(10) GUT model

Within the framework of an SO(10) GUT model that can accommodate both the LMA and LOW solar neutrino mixing solutions by appropriate choice of the right-handed Majorana matrix elements, we present explicit predictions for the neutrino oscillation parameters Δm221, sin22θ12, sin22θ23, sin22θ13, and δCP. Given the observed near maximality of the atmospheric mixing, the model favors the LMA solution and predicts that δCP is small. The suitability of Neutrino Superbeams and Neutrino Factories for precision tests of the two model versions is discussed.