CLAS physics database search results Measurement E163M16 E1-DVCS E06-003 Francois-Xavier Girod 2005 phi A Data errors deg dimensionless dimensionless 18.9359 0.1191 0.0427 46.3532 0.1584 0.0185 73.4877 0.236 0.0231 103.3959 0.2538 0.0278 132.9431 0.1291 0.0432 164.3849 0.0315 0.0478 197.3175 -0.0655 0.0418 224.5224 -0.146 0.0353 257.1179 -0.1833 0.0284 286.2293 -0.2253 0.0215 313.4737 -0.1732 0.0191 340.6567 -0.063 0.0409