The Onset of Quark-Hadron Duality in Pion Electroproduction

Abstract

A large data set of charged-pion electroproduction from both hydrogen and deuterium targets has been obtained spanning the low-energy residual-mass region. These data conclusively show the onset of the quark-hadron duality phenomenon, as predicted for high-energy hadron electroproduction. We construct several ratios from these data to exhibit the relation of this phenomenon to the high-energy factorization ansatz of electron-quark scattering and subsequent quark-to- pion production mechanisms.

arXiv comment11 pages, 3 figures, accepted in Phys. Rev. Lett. Tables added

References in corpus (10)

• Global QCD Analysis of Parton Structure of the Nucleon: CTEQ5 Parton Distributions
• A unitary isobar model for pion photo- and electroproduction on the proton up to 1 GeV
• Dynamical Parton Distributions Revisited
• Fragmentation Functions for Light Charged Hadrons with Complete Quark Flavour Separation
• Pion and Kaon Production in $e^{+}{e}^{-}$ and $ep$ Collisions at Next-to-Leading Order
• The origins of quark-hadron duality: How does the square of the sum become the sum of the squares?
• A Vademecum on Quark-Hadron Duality
• Quark-Hadron Duality in Structure Functions
• The aerogel threshold Cherenkov detector for the High Momentum Spectrometer in Hall C at Jefferson Lab
• Scaling and Duality in Semi-exclusive Processes

Cited by in corpus (16)

• Studies of Nucleon Resonance Structure in Exclusive Meson Electroproduction
• Measurement of unpolarized semi-inclusive pi+ electroproduction off the proton
• Charge Symmetry at the Partonic Level
• Transverse momentum dependence of semi-inclusive pion production
• Measurement of Parity-Violating Asymmetry in Electron-Deuteron Inelastic Scattering
• Semi-Inclusive Charged-Pion Electroproduction off Protons and Deuterons: Cross Sections, Ratios and Access to the Quark-Parton Model at Low Energies
• Measurement of the Parity-Violating Asymmetry in Electron-Deuteron Scattering in the Nucleon Resonance Region
• Hadron mass corrections in semi-inclusive deep-inelastic scattering
• The lead-glass electromagnetic calorimeters for the magnetic spectrometers in Hall C at Jefferson Lab
• Confirmation of quark-hadron duality in the neutron F_2 structure function
• Hadron mass corrections in semi-inclusive deep inelastic scattering
• Lowest order QED radiative corrections to five-fold differential cross section of hadron leptoproduction
• Unpolarized structure functions at Jefferson Lab
• Duality in semi-inclusive pion electroproduction
• Observation of quark-hadron duality in gamma*-p helicity cross sections
• The SHMS 11 GeV/c Spectrometer in Hall C at Jefferson Lab