Nucleon Strangeness Content through Vector Meson Dominance

Journal Article · Thu Aug 01 00:00:00 EDT 1996 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.77.1008· OSTI ID:286783

Williams, R A ^[1]; Cotanch, S R ^[2]

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1. Continuous Electron Beam Accelerator Facility, Newport News, Virginia 23606 (United States)
2. Department of Physics, North Carolina State University, Raleigh, North Carolina 27695-8202 (United States)

It is demonstrated that {ital N}({pi},{ital e}{sup +}{ital e}{sup {minus}}){ital N} measurements will provide new information about the nucleon timelike form factor in the {phi} meson region including the value of the {phi}{ital N} coupling {ital g}{sub {phi}{ital NN}}. Using vector meson dominance, {ital N}({pi},{ital e}{sup +}{ital e}{sup {minus}}){ital N} calculations reveal a 3 order of magnitude enhancement from the {phi} resonance coupled to the nucleon compared to the expected background {phi} production from the {rho}{pi}{phi} contribution through {rho} exchange. The effect from {phi}{ital N} coupling in the nucleon form factors yields a novel experimental signature for OZI (Okubo-Zweig-Iizuka) violation and the related strangeness content of the nucleon. {copyright} {ital 1996 The American Physical Society.}

• DOE Contract Number: FG05-88ER40461
• OSTI ID: 286783
• Journal Information: Physical Review Letters, Vol. 77, Issue 6; Other Information: PBD: Aug 1996
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
NUCLEONS
STRANGENESS
VECTOR DOMINANCE MODEL
MESONS
PION-NUCLEON INTERACTIONS
FORM FACTORS
PHI-1020 MESONS
COUPLING