Challenges in neutrino (astro)physics - C. Volpe - IPNO

jeudi 21 janv. 2010, 14:00 → 15:00 Europe/Paris

Salle Grossetete (LPNHE)

Important progress in our knowledge of neutrino properties has been made, in the last decade, after the discovery of neutrino oscillations, with an impact in various fields of physics. In particular, this phenomenon is essential to understand how neutrino propagate in astrophysical environments, e.g. in our Sun, in core-collapse supernovae, in the accretion-disk around black-holes, as well as in the Early Universe just before Big-Bang nucleosynthesis. Neutrino physics is now entering a crucial phase since, in the upcoming years, several experiments will address crucial open issues, among which the third neutrino mixing angle value and the possible existence of leptonic CP violation. In this talk we will review the status in the field as well as the recent advances in core-collapse supernova neutrinos. In particular, new phenomena have been shown to emerge after the inclusion of the neutrino coupling to matter and to neutrinos on one hand and of density profiles with shock waves effects on the other. We will discuss the importance to observe neutrinos from an (extra)galactic explosion as well as the diffuse supernova neutrino background. Finally we will present the conditions under which there can be CP violating effects in dense media and discuss possible effects in core-collapse supernovae.

Slides volpe-lpnhe.pdf