SCALING VIOLATION IN E-FRAGMENTATION FUNCTIONS - QCD EVOLUTION, HADRONIZATION AND HEAVY-QUARK MASS EFFECTS(E)

Tests of QCD in the process e+e- --> hX, where h is any hadron species , or any charged hadron, are proposed, concentrating on the following topics: decomposition of the total inclusive cross section into transv erse, longitudinal and asymmetric parts; extraction of the gluon fragm entation function from the longitudinal part; flavour sum rules for th e asymmetric part; power corrections due to quark masses and hadroniza tion; measurement of a. from a next-to-leading order analysis of scali ng violation. We conclude that a number of novel tests can be performe d using the very high statistics available at LEP, and that a comparis on between LEP and lower-energy data, together with information on hea vy quark fragmentation and some model-dependent assumptions about hadr onization, could provide a useful measurement of alpha(s).