Nuolear Physics B (Proc. Suppl.) 31 (1993) 3--4 North-Holland

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PROCEEDINGS SUPPLEMENTS

Welcome Address

Angel Morales University of Zaragoza

Ladies and gentlemen, dear colleagues and friends,

It is my great pleasure to open the Fitteenth International Conference on Neutrino Physics and Astrophysics, Neutrino-92, and welcome all of you to the City of Granada.

Since the first memorable Neutrino Conference, twenty years ago, in Balaten (Hungary), which I had the pleasure to attend, this series of meetings has become a unique forum to discuss the advances in Neutrino Physics and to review the status of our unders tanding of this fundamental particle, beth familiar and unknown. The field of Neutrino Physics and Astrophysics has intensively developed during the past years, involving an increasing number of scientists from many countries and Institutions. Innovating techniques and large experimental installations have been set up and much progress accomplished. The efforts of hundreds of physicists devoted to Neutrino Physics witness the vitality of the field. Many facets of the neutrino, either as an object of study in itself, or as a tool, in Neutrino Physics or Astrophysics, have been understood, but still many things need to be acquainted. As every two years, we are here, again, to review the present status of the Neutrino Science and to get a glance at its future.

We are pleased to have with us today, or along this week, various of the protagonists of the Neutrino history. The discovers of the electron and muon neutrinos, Frederick Reines and Jack Steinberger will be with us. Sheldom Glashow, who settled the frame of the standard model and who discovered the charm in Physics (and showed us the charm

of Physics) will lecture us in a few minutes. Rudolf M/issbauer, who leads one of the groups~, which has made it possible the GALLEX project, is here. Bruno Pontocorvo, who has made outstanding contributions to neutrino Physics, will be certainly very much interested in hearing the new results on solar neutrinos. Let me also mention Georges Zatsepin, who has created the Russian School on Neutrino Astrophysics and who is at the origin of the Baksan Neutrino Observatory. But, in fact, all of you here are the protagonists of this history, and my colleagues of the Organizing, Advisory, and Neutrino Committees, and myself are happy to witness this gathering.

The setting of a Neutrino Conference in Spain is a long story. Ten years ago, we organized in Spain the Neutrino Workshop at Javea. Some time later, Gyorgy Marx, Secretary of the Neutrino Committee, suggested t o m e the opportunity of organizing a Neutrino Conference in Spain, and that was formally committed in Boston (Neutrino 88). Now, we are having here the Neutrino Conference, in this special year of 1992 and in the City of Granada, so deeply involved in the 1492 historic events which lead Columbus to the Americas. And so this Conference has been enclosed within the series of commemorations "The Age of Discoveries" which celebrates the V Centenary of the discovery of America. I hope that this Session will keep the high standard of the Series of Neutrino Conferences, both from the scientific and organizing point of view.

Plenary monographic Sessions dealing with Neutrino Properties, Solar Neutrinos, Electroweak Physics at Colliders, Neutrino Interaction at Accelerators, Theoretical

1993 - Elsevier Science Publishers B.V.

4 A. Morales /Welcome Address

Topics, Neutrino Cosmology and Dark Matter and Neutrino Astrophysics, have been organized. As customary, mainly invited talks will be delivered, although time has been given, on request, to some relevant contributions submitted to the Scientific Secretariat. The Organizing Committee would be happy if the Program of the Conference merited your satisfaction.

Each Neutrino Conference has had its highlight. We are all eagerly waiting to hear in the Granada Conference the new results on solar neutrinos reported from the various experiments and, in particular, the results from GALLEX, which, as announced, is reporting the first direct observation of the solar pp neutrinos, and, as a consequence, constrains the solar neutrino problem to rather concrete terms. But let us leave Till

Kirsten the satisfaction of presenting his results on behalf of the GALLEX Collaboration. That justifies all our excitement and the motto why we are here because, as Democritus stated, "I would rather unravel a cause than gain a Kingdom", and we are narrowing the gap which leads to the solution of an enigma. The Neutrino 92 logo, Miro's sun, has turned out to be perfectly chosen, as Granada will be remembered by the solar neutrinos results. But many other contributions will make, I am sure, this meeting a very interesting and probably memorable Conference.

Let us now start the Scientific Session, wishing you, on behalf of the Organizing Committee, a most fruitful Conference and a pleasant stay in the City of Granada.