Gluon Fragmentation into Spin-Triplet S-Wave Quarkonium
Eric Braaten, Tzu Chiang Yuan
TL;DR
The leading color-singlet contribution to the fragmentation function for a gluon to split into spin-triplet {ital S}-wave quarkonium is presented, and it is found that this color- Singlet term is always negligible compared to the leadingcolor-octet contribution.
Abstract
The leading color-singlet contribution to the fragmentation function for a gluon to split into spin-triplet S-wave quarkonium is presented. In the case of charmonium, we find that this color-singlet term is always negligible compared to the leading color-octet contribution.