Explicit Model Realizing Parton-Hadron Duality
Abstract
We present a model that realizes both resonance-Regge (Veneziano) and parton-hadron (Bloom-Gilman) duality. We first review the features of the Veneziano model and we discuss how parton-hadron duality appears in the Bloom-Gilman model. Then we review limitations of the Veneziano model, namely that the zero-width resonances in the Veneziano model violate unitarity and Mandelstam analyticity. We discuss how such problems are alleviated in models that construct dual amplitudes with Mandelstam analyticity (so-called DAMA models). We then introduce a modified DAMA model, and we discuss its properties. We present a pedagogical model for dual amplitudes and we construct the nucleon structure function F2(x,Q2). We explicitly show that the resulting structure function realizes both Veneziano and Bloom-Gilman duality.
Cite
@article{arxiv.1204.2216,
title = {Explicit Model Realizing Parton-Hadron Duality},
author = {L. L. Jenkovszky and V. K. Magas and J. T. Londergan and A. P. Szczepaniak},
journal= {arXiv preprint arXiv:1204.2216},
year = {2015}
}
Comments
11 pages, 8 figures