+-------------------------------------------------------+
    |    Particle Physics Seminar		            |
    |    Thursday, April 6, 2000 - 11:00 AM	            |
    |    Small Seminar Room			            |
    |						            |
    |	Louis Lyons, Oxford			     	    |
    |	Report on the CERN Workshop on Confidence Limits    |
    +-------------------------------------------------------+

			ABSTRACT

An increasing common activity in the field of High Energy Physics is the
setting of limits on unobserved phenomena. Examples include searches for the
Higgs, B_s mixing, Physics beyond the Standard Model, dark matter, etc., as 
well as measurements of the mass of the electron-neutrino and accelerator 
experiments on neutrino oscillations.

A Workshop was held at CERN in January, devoted to setting confidence limits
in difficult cases. Several different approaches (Bayesian; Feldman-Cousins and
modifications thereof; CL_s method for Higgs searches) were discussed. There
were also talks on specific analyses, as well as a concluding Panel discussion.

This seminar will review the Workshop. Topics will include:
      What is the problem?
      Summary of some of the contributions
      Where does this leave us?