Solar neutrinos: Near-far asymmetry and just-so oscillations
- Institut de Physique, Universite des Sciences et de la Technologie, DZ-16111 Algiers (Algeria)
- Dipartimento di Fisica dellUniversita and Sezione INFN, I-70126 Bari, Italy; Institute for Advanced Study, Princeton, New Jersey 08540 (United States)
We propose to study possible signals of just-so oscillations in new-generation solar neutrino experiments by separating the events detected when the Earth is nearest to the Sun (perihelion {plus_minus} 3 months) from those detected when the Earth is farthest from the Sun (aphelion {plus_minus} 3 months). We introduce a solar-model-independent near-far asymmetry, which is nonzero if just-so oscillations occur. We apply our calculations to the kinetic energy spectra of electrons induced by {sup 8}B solar neutrino interactions in the SuperKamiokande and Sudbury Neutrino Observatory experiments. We show that the sensitivity to the neutrino oscillation parameters can be increased by probing the near-far asymmetry in selected parts of the electron energy spectra. {copyright} {ital 1997} {ital The American Physical Society}
- OSTI ID:
- 450542
- Journal Information:
- Physical Review, D, Vol. 55, Issue 3; Other Information: PBD: Feb 1997
- Country of Publication:
- United States
- Language:
- English
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