Seminare de DPNC
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Mercredi, 12. mars 1997

17.00 - Auditoire Stuckelberg

Universite de Geneve
Departement de physique
nucleaire et corpusculaire
24, quai Ernest-Ansermet
1211 Geneva 4

Tel. 022 702 6273
Fax. 022 781 2192

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Sujet:		nu_mu->nu_tau oscillation search at accelerators


Par:		Dr. Daniela Macina, Universite de Geneve

Resume:


Thirty years after the discovery of the neutrinos, the investigation of
their masses and mixings remains one of the great challenges in
experimental particle physics. A lot of experiments have been carried out
aimed at the determination of the neutrino mass directly or, indirectly,
through observation of oscillation of one type of neutrino into another.
Massive neutrinos would have enormous implication for particle physics,
astrophysics and cosmology. In particular nu_tau with masses of ~10 eV are
realistic candidates for Hot Dark Matter. The current situation on the
neutrino oscillation search will be briefly reviewed. A special emphasis
will be placed on the nu_mu->nu_tau oscillation search at accelerators, in
particular on the results from the CHARMII Collaboration and on the
preliminary results from the CHORUS Collaboration. Plans on future
neutrino oscillation search will be mentioned at the end of the talk.