Perturbative fragmentation of vector colored particle into bound states with a heavy antiquark

摘要

The fragmentation function of vector particle into possible bound S-wavestates with a heavy antiquark is calculated in the leading order ofperturbative QCD for the high energy processes at large transverse momenta withthe different behaviour of anomalous chromomagnetic moment. One-loop equationsare derived for the evolution of fragmentation function moments, which iscaused by the emission of hard gluons by the vector particle. The integratedprobabilities of fragmentation are given. The distribution of bound state overthe transverse momentum with respect to the axis of fragmentation is calculatedin the scaling limit.