Abstract
We present a calculation of the leading order QCD fragmentation functions for gluons to split into spin-triplet -wave quarkonia. We apply them to evaluate the gluon fragmentation contributions to inclusive quarkonium production at large transverse momentum processes such as the Fermilab Tevatron and find that the -wave quarkonia, especially the charmonium state, could be observed through the color-octet mechanism with present luminosity. Since there are distinctively large gaps between the contributions of two different (i.e., color-singlet and color-octet) quarkonium production mechanisms, our results may stand as a unique test of the NRQCD color-octet quarkonium production mechanism.
- Received 30 December 1996
DOI:https://doi.org/10.1103/PhysRevD.55.5437
©1997 American Physical Society