Using CLAS threshold photoproduction data and the JM model, the rho-proton scattering length is extracted as 0.23 +/- 0.03 fm, about four times smaller than the omega-proton value.
Evidence for a T = 0 three pion reso- nance,
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rho-Meson Nucleon Scattering Length from CLAS Threshold Photoproduction Measurements
Using CLAS threshold photoproduction data and the JM model, the rho-proton scattering length is extracted as 0.23 +/- 0.03 fm, about four times smaller than the omega-proton value.