INTERNATIONAL CONFERENCE ON PHYSICS AT EXTREME ENERGIES (in Hanoi) Please, find enclosed a first announcement of the International Conference on High energy which will be held in Hanoi in July 2000. Would you send this information to all members of the High energy association? We are looking forwards to see some Japanese colleagues to take part in this Conference. The informations, registration etc can be took from the secretary of the Rencontres du Vietnam, Ms. Claude Barthelemy email claude.barthelemy [at] th.u-psud.fr For those who would like to present a contribution to the parallel sessions, please send their contribution (abstract) before April 15 2000 to me at my email address pham [at] lpthe.jussieu.fr Fax: (33) 1 44 27 70 88. The preliminary program etc of the conference may be seen directly in http://www-lpnhep.in2p3.fr/vietnam2000/ ------------------------------------------------------------------------------ FOURTH RENCONTRES DU VIETNAM INTERNATIONAL CONFERENCE ON PHYSICS AT EXTREME ENERGIES Hanoi, Vietnam July 19 - July 25, 2000 PRELIMINARY ANNOUNCEMENT Two Rencontres du Vietnam, devoted to Particle Physics and Astrophysics were held in Vietnam; the first one in December 1993 and the second one in October 1995. The third Rencontres du Vietnam, devoted to Condensed Matter Physics was held in Hanoi in January 1999. The aim of the Rencontres has been to extend the succesful international collaboration of Europe, the former Soviet Union, Japan and the United States in these fast moving fields to the emerging Pacific rim countries. The number of countries represented, especially from South East Asia and the presence of top quality scientists demonstrated the importance which the international community places on scientific relations with Vietnam. It was suggested that a conference on particle physics be organized in 2000. PLACE AND DATES The fourth Rencntres du Vietnam, devoted to PHYSICS AT EXTREME ENERGIES will be held in Hanoi from Wednesday July 19 to Tuesday July 25, 2000. Hanoi, capital of Vietnam, has many universities and research institutes in physics. PURPOSE The conference will be devoted to fundamental and current topics of particle physics and astrophysics from the experimental and theoretical point of view. The aim of the conference is to develop the relationship between Vietnamese physicists and their colleagues all around the world, in particular from South-East Asia and the Western countries. PROGRAM - Electroweak Interactions : Precision Tests, CP Violation, Baryogenesis - Quantum Chromodynamics : Heavy Flavours, Jets, Low x physics, Color Superconductivity - Higgs Physics - Supersymmetry, Strings and Superstrings - Neutrino masses, neutrino oscillations, solar neutrinos - Very high energy phenomena in the universe - Cosmology The scientific program will consist mainly of reviews and invited talks. Parallel sessions will also be organized. FUNDING As Vietnam is a developing country, it is expected that participants from developed countries (Europe, Japan, USA,...) will be funded by their respective institutes. However, the organizers will try to cover the living expenses at the meeting of a limited number of participants from developing countries and from Eastern Europe.