Neutrinos: The Invisible Messengers

<strong>Seminar of the School of Physical Sciences ----------------------------------------------</strong> Title: <strong>Neutrinos: The Invisible Messengers </strong> Speaker:<strong> Srubabati Goswami</strong> (Physical Research Laboratory, Ahmedabad) Date: <strong>July 31, 2015 </strong> <strong>Abstract:</strong> Neutrinos are all pervading yet elusive. Since its discovery the question which has puzzled physicists is whether they have mass or not. Finally, the observation of neutrino oscillations in terrestrial experiments established that the neutrinos indeed have small but non-zero mass. In this talk I will discuss the salient features of neutrino oscillations, the current status of the oscillation parameters and the present unknowns. I will mention some of the future experiments that can determine these unknown parameters giving special emphasis on the India-based Neutrino Observatory (INO) experiment. I will also discuss some of the implications of small neutrino masses in terms of probing physics beyond the Standard Model.