Neutrino mass in supersymmetry

After summarizing neutrino oscillation results I discuss high and low-scale seesaw mechanisms, with or without supersymmetry, as well as recent attempts to understand the pattern of neutrino mixing from flavor symmetries. I also mention the possibility of intrinsic supersymmetric neutrino masses in the context of broken R parity models, showing how this leads to clear tests at the LHC.Comment: 10 pages, 8 composite figures, plenary talk at SUSY09, to be published in proceedings (AIP

Status of Neutrino Theory

A summary of neutrino oscillation results is given along with a discussion of neutrino mass generation mechanisms, including high and low-scale seesaw, with and without supersymmetry, as well as recent attempts to understand flavor. I argue that if the origin of neutrino masses is intrinsically supersymmetric, it may lead to clear tests at the LHC. Finally, I briefly discuss thermal leptogenesis and dark matter.Comment: 12 pages, 11 composite figures (24 postscript files), plenary talk XXIV International Symposium on Lepton Photon Interactions at High Energies (Lepton Photon 09

Neutrino masses twenty-five years later

The discovery of neutrino mass marks a turning point in elementary particle physics, with important implications for nuclear and astroparticle physics. Here I give a brief update, where I summarize the current status of three-neutrino oscillation parameters from current solar, atmospheric, reactor and accelerator neutrino data, discuss the case for sterile neutrinos and LSND, and also the importance of tritium and double beta decay experiments probing the absolute scale of neutrino mass. In this opininated look at the present of neutrino physics, I keep an eye in the future, and a perspective of the past, taking the oportunity to highlight Joe Schechter's pioneering contribution, which I have had the fortune to share, as his PhD student back in the early eighties.Comment: Invited talk presented at MRST'03 (Joe-Fest), Syracuse, NY, May 2003, 20 pages, uses AIP style file

Physics of Massive Neutrinos

I summarize the present status of global analyses of neutrino oscillations, including the most recent KamLAND and K2K data, as well as the latest solar and atmospheric neutrino fluxes. I give the allowed ranges of the three--flavour oscillation parameters from the current worlds' global neutrino data sample, their best fit values and discuss the small parameters DeltaM_solar/DeltaM_atm and sin^2 theta_13, which characterize the strength of CP violation in neutrino oscillations. I briefly discuss neutrinoless double beta decay and the LSND neutrino oscillation hint, as well as the robustness of the neutrino oscillation results in the presence of non-standard physics.Comment: 10 pages, 10 figures, 2 tables, uses espcrc2.sty Opening talk at 6th International Conf. on Neutrino Factories and SuperBeams (NuFact04) Osaka, Japan, July 26-August 1, 200

Neutrino masses and oscillations

I summarize the status of three--neutrino oscillations that follow from combining the relevant world's data. The discussion includes the small parameters Delta_m-sol/Delta_m-atm and \sin^2\theta_{13}, which characterize the strength of CP violation in neutrino oscillations, the impact of oscillation data on the prospects for probing the absolute scale of neutrino mass in \nbb and the robustness of the neutrino oscillation interpretation itself in the presence of non-standard physics. I also comment on the theoretical origin of neutrino mass, mentioning recent attemps to explain current oscillation data.Comment: 7 pages, 7 figures (in 9 eps/ps files). invited talk to appear in the proceedings of 11th International Symposium on Particles, Strings and Cosmology (PASCOS 2005), Gyeongju, Korea, 30 May - 4 Jun 200