Parton distributions in light-cone gauge: Where are the final-state interactions?
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We show that the final‐state interaction effects in the single target spin asymmetry discovered by Brodsky et al. can be reproduced by either a standard light‐cone gauge definition of the parton distributions with a prescription of the light‐cone singularities consistent with the definition with a gauge link involving the gauge potential at the spatial infinity.
Subfields: Nuclear and High Energy Physics
View Paper: https://www.semanticscholar.org/paper/c5b6098b4eb30bf6ea177eed5ecdeabada6b08f8
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In Nuclear and High Energy Physics
Citations in the corpus
- A formalism for the systematic treatment of rapidity logarithms in Quantum Field Theory (2012, background): “21) guage invariant requires a transverse gauge link at infinity [57–63] connecting the collinear Wilson lines, Wn(x +) and Wn(0), hiding inside Bn⊥ fields.”
- Generalized parton correlation functions for a spin-0 hadron (2008, unknown): “leads to a proper Wilson line after taking the TMD-limit [37, 38, 39, 36, 40 , 41, 42, 43, 44].”