Parton Model From Field Theory via Light-Front Current Algebra: The Good, the Bad, and the Terrible

Physics – High Energy Physics – High Energy Physics - Phenomenology

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5 pages

Scientific paper

The emergence of parton model from field theory in the context of light-front current algebra and naive canonical manipulations is reviewed. Shortcomings of the naive canonical picture, especially concerning renormalization issues are discussed. To illustrate the novel aspects of the renormalization problem in light-front dynamics, the scaling behavior of different components of currents under the dual power counting is stressed. It is noted that the application of dual power counting to deep inelastic phenomena may provide a simple intuitive understanding of twist. Talk Presented at the Fourth International Workshop on Light Cone Quantization and Non-Perturbative Dynamics, Polana Zgorzelisko, Poland.

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