We present a quasi-model-independent search for the physics responsible for
electroweak symmetry breaking. We define final states to be studied, and c
onstruct a rule that identifies a set of relevant variables for any particu
lar final state. A new algorithm ("SLEUTH") searches for regions of excess
in those variables and quantifies the significance of any detected excess.
After demonstrating the sensitivity of the method, we apply it to the semi-
inclusive channel e muX collected in 108 pb(-1) of p(p) over bar collisions
at roots=1.8 TeV at the DO experiment during 1992-1996 at the Fermilab Tev
atron. We find no evidence of new high p(T) physics in this sample.