
We discuss recent developments in neutrino physics and focus, in particular, on neutrino oscillations and matter effects of three light active neutrinos. Moreover, we discuss the difference between Dirac and Majorana neutrinos, neutrinoless $����$-decay, absolute neutrino masses and electromagnetic moments. Basic mechanisms and a few models for neutrino masses and mixing are also presented.
46 pages, LaTeX, 8 figures; Lectures given at the 41. Internationale Universit\"atswochen f\"ur Theoretische Physik, Flavour Physics, Schladming, Styria, Austria, February 22--28, 2003. Some references and clarifications added, misprints corrected
High Energy Physics - Phenomenology, High Energy Physics - Phenomenology (hep-ph), FOS: Physical sciences
High Energy Physics - Phenomenology, High Energy Physics - Phenomenology (hep-ph), FOS: Physical sciences
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