Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
1997-01-09
Phys.Rev. D55 (1997) 5437-5444
Physics
High Energy Physics
High Energy Physics - Phenomenology
15 pages in LaTex (2 figures in PS-file)
Scientific paper
10.1103/PhysRevD.55.5437
We present a calculation of the leading order QCD fragmentation functions for gluons to split into spin-triplet D-wave quarkonia. We apply them to evaluate the gluon fragmentation contributions to inclusive ^3D_J quarkonium production at large transverse momentum processes like the Tevatron and find that the D-wave quarkonia, especially the charmonium 2^{--} state, could be observed through 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 to NRQCD color-octet quarkonium production mechanism.
Chao and Kuang-Ta
Qiao Cong-Feng
Yuan Fang-Fang
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