Aim and Format of the Workshop
This Workshop is the second in a series whose aim is  to bring together theorists and experimentalists working on the phenomenology of the upcoming colliders. This year, the  topics cover primarily the physics at the Tevatron and the LHC, although issues relevant to the next generation of colliders as well as the impact of cosmology and astrophysics will be addressed. Themes to be covered in the Workshop range from Quantum Chromodynamics to  the mechanism of electroweak symmetry breaking, notably Higgs Physics, Supersymmetry and the phenomenology of extra-dimensions. The strong interplay between the signals from the New Physics and their respective backgrounds will be emphasized.  Three Working Groups have been set up covering these different aspects of the searches at the colliders. The projects are to start in January 2001 and should be completed by the end of the year.

The meeting at les Houches, between May 21st and June 1st, will be the culminating point of the Workshop where, besides the Working Group activities, a few lectures and review talks are planned.
Participation to the Workshop is open to all, however due to space limitation in Les Houches, attendance to the meeting is limited to 70 participants.

Les Houches Centre for Physics is located in the French Alps, about an hour from Geneva and an hour from Annecy. The Centre has a tradition of organising Schools, Workshops and Conferences for more than three decades now and boasts an excellent library. For the purpose of this Workshop a special computing system will be installed.