TOWARDS A SYSTEMATIC JET CLASSIFICATION

A method of classifying hadron jets is presented which uses the z correlations of all hard particles in the jet. We show that this leads to cuts which will allow preparation of "quark-enhanced" samples of jets. Such samples should be useful for computing the W mass in jet-jet invariant-mass distributions, and in searches for new particles which decay predominantly into jets. We urge experiments with e+e- data to test these theoretical predictions by comparisons of their "quark-enhanced" and "gluon- enhanced" jet samples. © 1990 The American Physical Society.