Friday, June 13, 2003, 16:00
WHGA Auditorium
Prof. Y. Kamyshkov, Univ. Tennessee
Abstract:
Since the first detection of anti-neutrinos by F.Reines and C.L. Cowan
fifty years ago (Nobel prize awarded to F. Reines for detection of the
neutrino in 1995) many efforts have been made to measure as well as to
predict theoretically the anti-neutrino fluxes from fission reactors.
Good agreements at the level of a few percent between calculations and
measurements have been established when experiments were performed at
small (~1 km or less) distances from the reactors. For the first time in
the KamLAND experiment, where average distance between reactor and
detector is ~ 180 km, the "disappearance" of anti-neutrino flux was
observed. We will discuss the significance of this result in relation to
neutrino masses and to the explanation of the long-standing problem of
the lack of Solar neutrinos. Other physics pursued by KamLAND
Collaboration will be also discussed in this talk.