CLAS physics database search results Measurement E1M54 E93-006 CLAS experiment V. D. Burkert, M. Ripani 2003 phi(p) dsigma/dphi_pr Stat. error deg mcbn/rad mcbn/rad 216 1.4952335 0.26648948 288 1.505761 0.35140705 0 2.1882284 0.39277205 71.99998 2.0179842 0.47860384 144 1.990582 0.33902788