Sea polarisation and the Drell-Hearn-Gerasimov sum-rule(s)

Details Sea polarisation and the Drell-Hearn-Gerasimov sum-rule(s) Sea polarisation and the Drell-Hearn-Gerasimov sum-rule(s)

1996-01-11

arxiv.org/abs/hep-ph/9601244v1

Z.Phys. A355 (1996) 77-80

Physics

High Energy Physics

High Energy Physics - Phenomenology

10 pages, LaTeX

Scientific paper

10.1007/s002180050080

The Drell-Hearn-Gerasimov sum-rule is really two sum-rules: one for each of the valence and the sea/glue contributions to the nucleon wavefunction. The convergence of these sum-rules follows from the Froissart bound for spin dependent processes in QCD and is necessary for the consistency of the constituent quark model of low energy QCD. Some challenges for future polarised photoproduction experiments, for example at ELFE, are discussed.

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