paper

D-wave heavy quarkonium production in fixed target experiments

arXiv:hep-ph/9807329 · doi:10.1103/PhysRevD.59.014009

Abstract

We calculate the -wave heavy quarkonium production at fixed target experiments under the NRQCD factorization formalism. We find that the color octet contributions are two orders of magnitude larger than color-singlet contributions if color-octet matrix elements are taken according to the NRQCD velocity scaling rules. Within the theoretical uncertainties, the prediction for the production rate of -wave charmonium state agrees with the preliminary result of E705 and other experiments. Searching for the -wave state is further suggested.

13pages, 4 PS figures, final vertion to appear in PRD

References in corpus (2)

Cited by in corpus (6)