Neutrino physics is one of the most fascinating fields in fundamental physics today. In the past two decades, extensive experimental evidence has established neutrino oscillation between three flavors due to non-zero neutrino mass and neutrino mixing. Massive neutrino is the first solid evidence of physics beyond the Standard Model. Neutrino mixing angles (including the non-zero θ_13) and mass-squared differences have been measured. However, there are still important open questions such as Dirac or Majorana nature of massive neutrinos, absolute neutrino mass scale, and mass hierarchy. Currently a wide range of experiments are running or planned on all those fronts. I will give a brief review of the results from oscillation experiments and status of the ongoing experimental programs. Special focus will be on neutrino-less double beta decay, which is a direct probe of nature of massive neutrinos and helps answer the absolute mass scale problem as well.
Coffee and cookies before the presentation at 3:15 pm, and refreshments after the presentation will both be served in Room 128.