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Bloom-Gilman duality of the nucleon structure function and the elastic peak contribution

G. Ricco·M. Anghinolfi·M. Ripani·M. Taiuti·S. Simula
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Abstract

The occurrence of the Bloom-Gilman duality in the nucleon structure function is investigated by analyzing the Q**2-behavior of low-order moments, both including and excluding the contribution arising from the nucleon elastic peak. The Natchmann definition of the moments has been adopted in order to cancel out target-mass effects. It is shown that the onset of the Bloom-Gilman duality occurs around Q**2 ~ 2 (GeV/c)**2 if only the inelastic part of the nucleon structure function is considered, whereas the inclusion of the nucleon elastic peak contribution leads to remarkable violations of the Bloom-Gilman duality.

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G. Ricco, M. Anghinolfi, M. Ripani, M. Taiuti, S. Simula. 1999-09-29. Bloom-Gilman duality of the nucleon structure function and the elastic peak contribution. https://arxiv.org/abs/hep-ph/9909547

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