Solar neutrinos: Near-far asymmetry and just-so oscillations

Journal Article · Sat Feb 01 04:00:00 EST 1997 · Physical Review, D

DOI:https://doi.org/10.1103/PhysRevD.55.1353· OSTI ID:450542

Faied, B ^[1]; Fogli, G L; Montanino, D ^[2]

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1. Institut de Physique, Universite des Sciences et de la Technologie, DZ-16111 Algiers (Algeria)
2. 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, Journal Name: Physical Review, D Journal Issue: 3 Vol. 55; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
ASYMMETRY
BORON 8
ELECTRON SPECTRA
ENERGY SPECTRA
KINETIC ENERGY
NEUTRINO OSCILLATION
NEUTRINO REACTIONS
SENSITIVITY
SOLAR NEUTRINOS
SUN