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Title: Lepton Scattering and Quark-Hadron Duality Studies at Jefferson Lab

Abstract

At high enough energies asymptotic freedom guarantees the deep inelastic scattering cross sections to be calculated as nearly free electron-quark scattering. However, confinement guarantees that the experimentally observed final states particles are hadrons. Low-energy quark hadron duality suggests that the hadronic cross sections, when averaged over an appropriate energy range, nevertheless coincide with the naive leading-twist quark-gluon calculations. Deep inelastic inclusive scattering shows that scaling at modest Q{sup 2} and v already arises from very few resonance channels. This is reflected by the striking agreement (<10%) between data in the nucleon resonance region and the deep inelastic (W{sup 2}>4GeV{sup 2}) region for the Q{sup 2}>0.5 (GeV/c){sup 2}, known as the Bloom-Gilman duality. Electron-hadron scattering allows for further investigation of quark-hadron duality by virtue of its ability to select resonances, by tagging with either spin or flavor.

Authors:
Publication Date:
Research Org.:
Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
Sponsoring Org.:
USDOE Office of Energy Research (ER) (US)
OSTI Identifier:
782693
Report Number(s):
JLAB-PHY-01-15; DOE/ER/40150-1857
TRN: US0103456
DOE Contract Number:  
AC05-84ER40150
Resource Type:
Journal Article
Journal Name:
submitted to Lepton Scattering, Hadrons and QCD, World Scientific
Additional Journal Information:
Other Information: Submitted to Lepton Scattering, Hadrons and QCD, World Scientific; PBD: 1 Jun 2001
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; CROSS SECTIONS; DEEP INELASTIC SCATTERING; DUALITY; ENERGY RANGE; HADRONS; LEPTONS; QUARKS; RESONANCE

Citation Formats

Ent, R. Lepton Scattering and Quark-Hadron Duality Studies at Jefferson Lab. United States: N. p., 2001. Web. doi:10.1142/9789812799708_0014.
Ent, R. Lepton Scattering and Quark-Hadron Duality Studies at Jefferson Lab. United States. https://doi.org/10.1142/9789812799708_0014
Ent, R. 2001. "Lepton Scattering and Quark-Hadron Duality Studies at Jefferson Lab". United States. https://doi.org/10.1142/9789812799708_0014. https://www.osti.gov/servlets/purl/782693.
@article{osti_782693,
title = {Lepton Scattering and Quark-Hadron Duality Studies at Jefferson Lab},
author = {Ent, R},
abstractNote = {At high enough energies asymptotic freedom guarantees the deep inelastic scattering cross sections to be calculated as nearly free electron-quark scattering. However, confinement guarantees that the experimentally observed final states particles are hadrons. Low-energy quark hadron duality suggests that the hadronic cross sections, when averaged over an appropriate energy range, nevertheless coincide with the naive leading-twist quark-gluon calculations. Deep inelastic inclusive scattering shows that scaling at modest Q{sup 2} and v already arises from very few resonance channels. This is reflected by the striking agreement (<10%) between data in the nucleon resonance region and the deep inelastic (W{sup 2}>4GeV{sup 2}) region for the Q{sup 2}>0.5 (GeV/c){sup 2}, known as the Bloom-Gilman duality. Electron-hadron scattering allows for further investigation of quark-hadron duality by virtue of its ability to select resonances, by tagging with either spin or flavor.},
doi = {10.1142/9789812799708_0014},
url = {https://www.osti.gov/biblio/782693}, journal = {submitted to Lepton Scattering, Hadrons and QCD, World Scientific},
number = ,
volume = ,
place = {United States},
year = {2001},
month = {6}
}