Erratum: Supercollider physics
Equation (2.46) should read xW3(x, go) =1.49x (1 -x) '(1+5.86x) .(2 46) A programming error led to too slow a growth in the population of heavy flavors.At the largest values of Q, our structure functions underestimate the heavy quark content of the proton by about a factor of 2. We remark that near threshold the results are sensitive to the (rather arbitrary) choice of threshold behavior.We are grateful for discussions with Keith Ellis, John Collins, and Wu-Ki Tung which led to the discovery of this error.A perhaps better estimate, but one we do not completely endorse, is given by Collins and Tung (1986).The underestimate of the number of heavy quarks has very little effect on the rates in EHLQ.To illustrate the consequences we will discuss the two most sensitive observables.