CLAS physics database search results Measurement E1M215 E93-006 CLAS experiment V. D. Burkert, M. Ripani 2003 theta(pi+) dsigma/d(−cos(theta_pip)) Stat. error deg mcbn/rad mcbn/rad 9 5.6683092 2.3624258 27 2.9703417 1.1224527 45 5.632545 1.1223629 63 5.0662723 0.83781558 81 6.8784685 1.3453445 98.99999 5.7800364 0.94240981 117 5.6139207 0.68796009 135 4.6600523 0.69218248 153 4.2567554 1.3062496 171 4.3384519 0.7857914