DATE: |
2004-04-27 16:00 - 17:00 |
PLACE: |
Seminar Hall in 4th Building |
TITLE: |
NEUTRINO MASSES AND MIXING: NEW SYMMETRY OF NATURE? |
CONTACT: |
Physics Seminar Organizer |
SPEAKER: |
Dr. Alexei Smirnov (International Centre for Theoretical Physics Trieste, Italy and Institute for Nuclear Research of Russian Academy of Sciences,Moscow, Russia Centre) |
LANGUAGE: |
English |
URL: |
http://seminar.kek.jp/physics |
ABSTRACT: |
Results on neutrino masses and lepton mixing will be summarized.
The key issues are maximal or near maximal 2-3 mixing,
relation of the 1-2 mixings in quark and lepton sector,
smallness of the 1-3 mixing and a possibility of
the quasi-degenerate neutrino mass spectrum.
The questions on the way to underlying physics
will be addressed: do the neutrino results imply new symmetry of nature?
Is the quark-lepton symmetry realized at some
level? Some results of the ``No-symmetry'' approach
will be presented. |