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Phys. Rev. Lett. 77, 1008–1011 (1996)

Nucleon Strangeness Content through Vector Meson Dominance

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Robert A. Williams
Continuous Electron Beam Accelerator Facility, Newport News, Virginia 23606

Stephen R. Cotanch
Department of Physics, North Carolina State University, Raleigh, North Carolina 27695-8202

Received 19 January 1996; revised 25 April 1996; published in the issue dated 5 August 1996

It is demonstrated that N(π,e+e-)N measurements will provide new information about the nucleon timelike form factor in the φ meson region including the value of the φN coupling gφNN. Using vector meson dominance, N(π,e+e-)N calculations reveal a 3 order of magnitude enhancement from the φ resonance coupled to the nucleon compared to the expected background φ production from the ρπφ contribution through ρ exchange. The effect from φN 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.

© 1996 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevLett.77.1008
DOI:
10.1103/PhysRevLett.77.1008
PACS:
25.80.Hp, 12.40.Vv, 13.60.-r, 14.20.Dh