Physics and Astronomy Colloquium
		        Tuesday, March 12, 2002
	     4:10 pm, Room 118 Physics-Astronomy Building

  (Student Informal Meeting will be from 3:15-3:45 pm in Room 224 PA)
		     Refreshments served at 3:45pm


		    The Puzzle of the Neutrino Mass

			 by Adam Para, Fermilab

Neutrinos are a billion times more abundant than protons, neutrons or electrons,
yet we are hardly aware of their existence. We know relatively little about
them. Do they have mass? Why their mass (if any) is so tiny? What kind of
mass do they have? What does it mean 'kind of mass'? Recent experiments
have provided tantalizing evidence for the existence of a neutrino
oscillation phenomenon that implies tiny neutrino masses. I will provide
an overview of the problems related to neutrino masses and describe
the experimental effort dedicated to the understanding of the nature of
neutrinos.