Quark–hadron duality in electron scattering
نویسندگان
چکیده
منابع مشابه
Quark-Hadron Duality in Electron Scattering
Quark-hadron duality addresses some of the most fundamental issues in strong interaction physics, in particular the nature of the transition from the perturbative to non-perturbative regions of QCD. I summarize recent developments in quark-hadron duality in lepton–hadron scattering, and outline how duality can be studied at future high-luminosity facilities such as Jefferson Lab at 12 GeV or an...
متن کاملQuark-Hadron Duality in Electron-Pion Scattering
We explore the relationship between exclusive and inclusive electromagnetic scattering from the pion, focusing on the transition region at intermediate Q2. Combining Drell-Yan data on the leading twist quark distribution in the pion with a model for the resonance region at large x, we calculate QCD moments of the pion structure function over a range of Q2, and quantify the role of higher twist ...
متن کاملLocal Quark-hadron Duality in Electron Scattering
We present some recent developments in the study of quark-hadron duality in structure functions in the resonance region. To understand the workings of local duality we introduce the concept of truncated moments, which are used to describe the Q dependence of specific resonance regions within a QCD framework.
متن کاملWhat We Know about the Theoretical Foundation of Duality in Electron Scattering
We consider some of the things that we understand about the theoretical underpinnings of duality, including items such as why the resonance peak/background ratio is constant in general, why it falls for the ∆(1232), what we might expect for scaling and duality with longitudinal or spin-dependent structure functions, and what kind of scaling or duality we might expect for semiexclusive processes.
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ژورنال
عنوان ژورنال: Physics Reports
سال: 2005
ISSN: 0370-1573
DOI: 10.1016/j.physrep.2004.10.004