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Near threshold electroproduction of the omega meson at Q2 ~ 0.5 GeV2

P. Ambrozewicz·J. Mitchell·J. Dunne·P. Markowitz·C. J. Martoff·J. Reinhold·B. Zeidman
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Abstract

Electroproduction of the omega meson was investigated in the p(e,e'p)omega reaction. The measurement was performed at a 4-momentum transfer Q2 ~ 0.5 GeV2. Angular distributions of the virtual photon-proton center-of-momentum cross sections have been extracted over the full angular range. These distributions exhibit a strong enhancement over t-channel parity exchange processes in the backward direction. According to a newly developed electroproduction model, this enhancement provides significant evidence of resonance formation in the gamma* p -> omega p reaction channel.

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P. Ambrozewicz, J. Mitchell, J. Dunne, P. Markowitz, C. J. Martoff, J. Reinhold, B. Zeidman. 2004-06-15. Near threshold electroproduction of the omega meson at Q2 ~ 0.5 GeV2. https://doi.org/10.1103/physrevc.70.035203

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