Nucleon-Quarkonium Elastic Scattering and the Gluon Contribution to Nucleon Spin
Pervez Hoodbhoy
Abstract
It is shown that the amplitude for the scattering of a heavy quarkonium system from a nucleon near threshold is completely determined by the fraction of angular momentum, as well as linear momentum, carried by gluons in the nucleon. A form for the quarkonium-nucleon non-relativistic potential is derived.
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