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Centre for Particle Theory

Neutrino Physics

8 Lectures Prof. S. Pascoli

The aim of the course is to introduce the ideas and concepts of modern neutrino physics and astroparticle physics. The recent observation of neutrino oscillations implies that neutrinos are massive and mix. This constitutes the first evidence of new Physics beyond the Standard Model. The course will review i) the theoretical aspects of neutrino oscillations and the present knowledge of the oscillation parameters, ii) the non-oscillation searches for neutrinos, including neutrino-less double beta decay and the issue of Majorana neutrinos. It will then move on to consider extensions of the Standard Model which can explain neutrino masses and their smallness. It will also briefly cover the role of neutrinos in the Early Universe, focusing on e.g. neutrinos as dark matter, baryogenesis and leptogenesis.

Outline of the course

Neutrino oscillations: theory, experiments, present knowledge of neutrinos and questions for the future.
Nature of neutrinos and neutrino masses: Majorana versus Dirac particles, Dirac and Majorana masses, origin of neutrino masses beyond the Standard Model.
Neutrinos as Dark Matter: light neutrinos as hot dark matter, sterile neutrinos as warm dark matter.
Baryogenesis and Leptogenesis: Big Bang Nucleosynthesis, neutrinos and the Early Universe.

Books and articles for the course

C. Giunti and C. W. Kim, Fundamentals of Neutrino Physics and Astrophysics, (Oxford University Press, USA, 2007)
A. Strumia and F. Vissani, Neutrino masses and mixings, hep-ph/0606054
J. Lesgourgues and S. Pastor, Massive neutrinos and cosmology, Phys. Rept. 429 (2006) 307 (astro-ph/0603494)