3 papers
hep-ph2003
Double Extensive Air Shower Induced by Ultra-High Energy Cosmic Tau-Neutrino
M. M. Guzzo, C. A. Moura
We investigate the possibility of detecting cosmic ultra-high energy tau-neutrinos by means of a process involving a double extensive air shower, the so-called Double-Bang Phenomen…
hep-ph1999
Flavor changing models with strictly massless neutrinos
M. M. Guzzo, H. Nunokawa, O. L. G. Peres +2
Theoretical models which present flavor changing neutrino interactions and simultaneously prevent this particle from acquiring any mass exist. We discuss some of them and their pre…
hep-ph1995
On mixing angles and resonances in three neutrino oscillations in matter
V. M. Aquino, J. Bellandi, M. M. Guzzo
We find exact analytical expressions for mixing angles in matter in the context of three generation neutrino oscillations in matter to discuss the role of resonances in this phenom…