Experimental verification of quark-hadron duality

Journal Article · Thu Apr 01 00:00:00 EST 1999 · Physical Review Letters

OSTI ID:754034

Niculescu, I; Armstrong, C S; Arrington, J ^[1]

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1. and others

A newly-obtained sample of inclusive electron-nucleon scattering data has been analyzed for precision tests of quark-hadron duality. The data are in the nucleon resonance region, and span the range 0.3 < Q{sup 2} < 5.0 (GeV/c){sup 2}. Duality is observed both in limited and extended regions around the prominent resonance enhancements. Higher twist contributions to the F{sub 2} structure function are found to be minimal on average, even in the low Q{sub 2} regime of approximately 0.5 (GeV/c){sup 2}. The proton magnetic form factor, extracted from purely inelastic data assuming duality, is in good agreement with the direct measurements. In all cases, duality appears to be a non-trivial property of the nucleon structure function.

• Research Organization: Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
• Sponsoring Organization: USDOE Office of Energy Research (ER) (US)
• DOE Contract Number: AC05-84ER40150
• OSTI ID: 754034
• Report Number(s): DOE/ER/40150-1341; JLAB-PHY-99-09; TRN: US0002178
• Journal Information: Physical Review Letters, Other Information: Submitted to Physical Review Letters; PBD: 1 Apr 1999
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
DUALITY
QUARKS
HADRONS
INCLUSIVE INTERACTIONS
ELECTRON-NUCLEON INTERACTIONS
STRUCTURE FUNCTIONS
FORM FACTORS
HIGH ENERGY PHYSICS