1998/03/26 by Zoltán Batiz, Zoltan Batiz, Franz Gross · 2 citations
Physics and Astronomy · #Black Holes and Theoretical Physics #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #nucl-th
paper · pdf · doi:10.1103/physrevc.58.2963
published as Phys.Rev.C58:2963-2976,1998 · 10 figures
arxiv created 1998/03/26 · openalex publication_date 1998/11/01 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
In this paper we reconcile two contradictory statements about deep inelastic scattering in manifestly covariant theories: (i) the scattering must be gauge invariant, even in the deep inelastic limit, and (ii) the pole term (which is not gauge invariant in a covariant theory) dominates the scattering amplitude in the deep inelastic limit. An ``intermediate'' answer is found to be true. We show that, at all energies, the gauge-dependent part of the pole term cancels the gauge-dependent part of the rescattering term, so that both the pole and rescattering terms can be redefined separately in a gauge-invariant fashion. The resulting, redefined pole term is then shown to dominate the scattering in the deep inelastic limit. Details are worked out for a simple example in 1+1 dimensions.