Mikheyev-smirnov-wolfenstein effects in vacuum oscillations |
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| Authors: | Friedland |
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| Institution: | Department of Physics, University of California, Berkeley, California 94720 and Theory Group, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA. |
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| Abstract: | We point out that for solar neutrino oscillations with the mass-squared difference of Deltam(2) approximately 10(-10)-10(-9) eV(2), i.e., in the so-called vacuum oscillation range, the solar matter effects are non-negligible, particularly for the low energy pp neutrinos. One consequence of this is that the values of the mixing angle straight theta and pi/2-straight theta are not equivalent, making it necessary to consider the entire physical range of the mixing angle 0
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