Abstract
Being reformulated in the color dipole basis of small-x QCD, Adler’s theorem establishes a connection between perturbative and nonperturbative descriptions of deep inelastic scattering and quantifies the effect of nonperturbative dynamics on would-be perturbative observables. In particular, it provides a quantitative measure of the nonperturbative influence on the longitudinal structure function in charged current deep inelastic scattering and imposes stringent constraints on nonperturbative parameters of color dipole models. Our analysis calls for new experimental tests of Adler’s theorem in diffractive neutrino scattering.
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Fiore, R., Zoller, V.R. Color dipoles, PCAC, and Adler’s theorem. Jetp Lett. 85, 309–314 (2007). https://doi.org/10.1134/S0021364007070016
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DOI: https://doi.org/10.1134/S0021364007070016