Wayne State University, Department of Physics and Astronomy

Colloquium

Thursday 15 October, 1998

Theoretical Implications of the Recent Neutrino Discoveries

R. Mohapatra, University of Maryland

Our understanding of the weak force is intimately connected to the question of whether neutrinos are massive or massless. Similarly, our understanding of the present profile of the universe depends to a large extent on whether neutrinos have mass. It is for these reasons that the recent discovery of neutrino oscillations, (which can occur only if the neutrinos have mass), by the Super-Kamiokande collaboration has sent a wave of exhilaration through the particle physics community. After a brief review of our present understanding of the particles and forces, known as the standard model and the problems it leaves unresolved, I will discuss how the discovery of the neutrino mass may have (i) narrowed the choices for future unified theories by strongly implying that weak forces ultimately become parity conserving contrary what is concluded from low energy observations; (ii) answered the question of the origin of matter in the universe and (iii) has even given tentative hints that there may exist a parallel universe.

Colloquium starts at 16:00 in Room 245 and lasts about 1 hour including questions. Refreshements are served at 15:30 in room 245.

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