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Abstract:
This thesis explores different unusual setups of neutrino oscillation experiments.
They could help to observe parametric enhancement of
neutrino oscillations or similar effects. Three different setups are studied:
an artificial periodic step function density profile, a neutrino factory
beam passing through the core of the earth, and a short baseline
with two layers of matter of different constant densities. Different
approximations of the neutrino oscillation probability and numerical
calculations are used for analysing the setups giving an overview of the
basic features. Only the neutrino beam through the earth is under certain
conditions able to lead to observable enhancement effects coming
from multiple layers of matter with different densities. However, the
artificial density profile would have to be longer than 1000 km being
technically not realizable. To detect parametric enhancement with a
neutrino beam traversing the earth core, the energy resolution of the
detector would have to be lowered to about 10%. In addition statistical
analysis of the results to differentiate the used oscillation channels
and high statistics are necessary. In the short baseline setup a vacuum
layer of more than 300 km thickness would be needed to enhance matter
effects. In experiments with atmospheric neutrinos the effects are
small and washed out by experimantal energy resolution.
