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arXiv · hep-ph/9701249

Gluon fragmentation to ^3D_J quarkonia

Cong-feng Qiao·Feng Yuan·Kuang-Ta Chao
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Abstract

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.

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Cong-feng Qiao, Feng Yuan, Kuang-Ta Chao. 1997-01-09. Gluon fragmentation to ^3D_J quarkonia. https://doi.org/10.1103/physrevd.55.5437

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