CLAS physics database search results Measurement E50M21 e1-dvcs run CLAS data V. Burket, L. Elouadrhiri, M. Garson, S. Stepanyan 2012 -t phi d4sigma/dQ2 dxb dt dphi Data errors Systematic errors GeV^2 degrees nb/(rad*GeV^4) nb/(rad*GeV^4) nb/(rad*GeV^4) 0.5272 9 5.7441 1.658 0.462 0.5274 27 4.9669 1.377 0.529 0.5256 45 7.1293 1.841 0.413 0.5268 63 14.149 3.655 2.507 0.528 81 5.6531 2.529 1.11 0.5288 279 11.824 3.28 1.687 0.5266 297 5.0418 1.52 0.616 0.5275 315 2.6297 1.176 0.315 0.5256 333 6.2596 1.888 0.468 0.5275 351 2.6649 1.191 0.385