Color dipoles, PCAC and Adler's theorem
arXiv:hep-ph/0702291 · doi:10.1134/S0021364007070016
Abstract
Being reformulated in the color dipole basis of small-x QCD Adler's theorem establishes a connection between perturbative and non-perturbative descriptions of DIS and quantifies the effect of non-perturbative dynamics on would-be-perturbative observables. In particular, it provides a quantitative measure of the non-perturbative influence on the longitudinal structure function in charged current DIS and imposes stringent constraints on non-perturbative parameters of color dipole models. Our analysis calls for new experimental tests of Adler's theorem in diffractive neutrino scattering.
14 pages, 2 figures
References in corpus (12)
- The Cosmological Parameters 2006
- Big-Bang nucleosynthesis (Particle Data Group mini-review)
- Exclusive diffractive processes at HERA within the dipole picture
- Nonforward parton densities and soft mechanism for form factors and wide-angle Compton scattering in QCD
- Phase transitions in open quantum systems
- Off-diagonal parton distributions and their evolution
- Further success of the colour dipole model
- Diffraction in Deep Inelastic Scattering
- The spectrum and solutions of the generalized BFKL equation for total cross section
- Charged currents, color dipoles and xF_3 at small x
- From soft to hard regime in elastic pion-pion scattering above resonances
- Shadowing in neutrino deep inelastic scattering and the determination of the strange quark distribution