Quark Hadron Duality - Recent Jefferson Lab Results
Ioana Niculescu
TL;DR
Recent Jefferson Lab results demonstrate that quark-hadron duality, the correspondence between partonic and hadronic descriptions, is observed across various observables including the neutron, highlighting its broad applicability.
Contribution
This paper reviews recent experimental evidence from Jefferson Lab showing quark-hadron duality in multiple observables beyond the proton F2 structure function.
Findings
Quark-hadron duality observed in neutron data
Duality applies to various scattering observables
Resonance region averages resemble perturbative QCD predictions
Abstract
The duality between the partonic and hadronic descriptions of electron--nucleon scattering is a remarkable feature of nuclear interactions. When averaged over appropriate energy intervals the cross section at low energy which is dominated by nucleon resonances resembles the smooth behavior expected from perturbative QCD. Recent Jefferson Lab results indicate that quark-hadron duality is present in a variety of observables, not just the proton F2 structure function. An overview of recent results, especially local quark-hadron duality on the neutron, are presented here.
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Taxonomy
TopicsQuantum Chromodynamics and Particle Interactions · Particle physics theoretical and experimental studies · High-Energy Particle Collisions Research