Abstract :
The importance of polarised gluons fragmenting into Λ in polarised e+e− annihilation is discussed using the Altarelli-Parisi evolution equations satisfied by the quark and gluon fragmentation functions. In this context, the polarised fragmentation function glΛ(x, Q2) appearing in the cross section is discussed within the parton model. We relate this fragmentation function to the quark, anti-quark and gluon fragmentation functions and also find the QCD corrections to order αs.
