SECONDARY HEAVY-QUARK PAIR PRODUCTION IN E(-) ANNIHILATION()E()

The multiplicity of heavy quarks from gluon splitting in e(+)e(-) anni hilation has now been theoretically calculated and experimentally meas ured at LEP. However, the experimental measurement requires theoretica l input for the shape of the multiplicity with respect to an event sha pe. In this paper we calculate the multiplicity of heavy quarks from g luon splitting in e(+)e(-) annihilation as a function of the heavy jet mass of the event, to next-to-leading logarithmic accuracy. We compar e our result with Monte Carlo predictions. (C) 1998 Elsevier Science B .V. All rights reserved.