Approach to Perturbative Results in the N-Delta Transition
High Energy Physics - Phenomenology
2009-10-31 v1
Abstract
We show that constraints from perturbative QCD calculations play a role in the nucleon to Delta(1232) electromagnetic transition even at moderate momentum transfer scales. The pQCD constraints, tied to real photoproduction data and unseparated resonance response functions, lead to explicit forms for the helicity amplitudes wherein the E2/M1 ratio remains small at moderately large momentum transfer.
Keywords
Cite
@article{arxiv.hep-ph/9804356,
title = {Approach to Perturbative Results in the N-Delta Transition},
author = {Carl E. Carlson and Nimai C. Mukhopadhyay},
journal= {arXiv preprint arXiv:hep-ph/9804356},
year = {2009}
}
Comments
4 pages, 2 figures, ReVTeX