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Heavy quarkonium production in double pomeron exchange processes in perturbative QCD |
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| Authors: | Feng Yuan |
| Affiliation: | Institut für Theoretische Physik, Universität Heidelberg, Philosophenweg 19, 69120 Heidelberg, Germany |
| Abstract: | We calculate the heavy quarkonium production in double pomeron exchange processes in perturbative QCD by using two-gluon exchange model. For the P-wave χJ productions, we find χ1 and χ2 production amplitudes which vanish in the forward scattering limit. We also calculate direct J/ψ()+γ production in the same approach, and these direct contributions are much smaller than the feeddown contributions from the P-wave states. |
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