Atmospheric neutrino oscillation analysis with subleading effects in Super-Kamiokande I, II, and III
Abstract
We present a search for nonzero θ13 and deviations of sin2θ23 from 0.5 in the oscillations
of atmospheric neutrino data from Super-Kamiokande I, II, and III. No distortions
of the neutrino flux consistent with nonzero θ13 are found and both neutrino mass
hierarchy hypotheses are in agreement with the data. The data are best fit at Δm2=2.1×10-3eV2,
sin2θ13=0.0, and sin2θ23=0.5. In the normal (inverted) hierarchy θ13 and Δm2 are constrained
at the one-dimensional 90% C.L. to sin2θ13<0.04(0.09) and 1.9(1.7)×10 -3<Δm2<2.6(2.7)×10-3eV2.
The atmospheric mixing angle is within 0.407≤sin2θ23≤0.583 at 90% C.L. © 2010 The
American Physical Society.
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https://hdl.handle.net/10161/4274Published Version (Please cite this version)
10.1103/PhysRevD.81.092004Publication Info
(2010). Atmospheric neutrino oscillation analysis with subleading effects in Super-Kamiokande
I, II, and III. Physical Review D - Particles, Fields, Gravitation and Cosmology, 81(9). pp. 92004. 10.1103/PhysRevD.81.092004. Retrieved from https://hdl.handle.net/10161/4274.This is constructed from limited available data and may be imprecise. To cite this
article, please review & use the official citation provided by the journal.
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Kate Scholberg
Arts & Sciences Distinguished Professor of Physics
Prof. Scholberg's broad research interests include experimental elementary particle
physics, astrophysics and cosmology. Her main specific interests are in neutrino physics:
she studies neutrino oscillations with the Super-Kamiokande experiment, a giant underground
water Cherenkov detector located in a mine in the Japanese Alps. Super-K was constructed
to search for proton decay and to study neutrinos from the sun, from cosmic ray collisions
in the atmosphere, and from supernovae. On Super-K, Pr
Christopher Walter
Professor of Physics
I am a professor in the physics department studying particle physics and cosmology.
I try to understand both the nature of the ghostly particles called neutrinos in giant
detectors deep underground, and why the expansion of the universe is accelerating
using telescopes on top of mountains. My background and training is originally in
particle physics and I was part of the team that showed the sub-atomic particles called
neutrinos have mass. The leader of our team, T. Kajita
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