Within the multi-folded research context of beyond the Standard Model physics,
the author of this Ph. D. Thesis works on several different research lines: the study
of low-energy Supersymmetry effects and of its underlying :flavor and GP-violating
structures at the B factories, the exploration of extra-dimension scenarios through
gravitational effects on ordinary matter and bulk fields, the development of anomaly
cancellation mechanisms for gauge theories in D dimensions, with the study of their
phenomenological implications, the discussion about new experimental facilities for
testing the structure of the neutrino mass matrix.
Not all of the material produced during the Ph. D. activity could be collected
here, but the results in two of these fields have been selected: topics related to the
cancellation of gauge anomalies and to the phenomenology of neutrino oscillations
from artificial sources.
As a result, this Thesis has a quite unusual structure: it is divided into two
separate parts, which share the effort of Particle Physics to go beyond the Standard
Model, but differ by the use of drastically different research techniques and
strategies.
Each of the two parts contains a brief introduction, which anticipates the main
lines of the research program developed and the results obtained, is divided in Chapters
and has a specific Bibliography.
