RECOMBINATION METHODS FOR JETS IN P(P)OVER-BAR COLLISIONS

A jet algorithm must specify how to (re-)combine different partons or towers into a single four-vector. Various recombination schemes have b een used experimentally to examine the transverse energy profile of je ts in hadron colliders. Generally, the data is insensitive to which sc heme is used. However, we argue that the recombination scheme previous ly used by the D empty set collaboration is expected to have large per turbative corrections and should not be used for the purposes of makin g a quantitative comparison with fixed-order perturbation theory.