CLAS physics database search results Measurement E216M754 CLAS12 Run Group A Krishna Chandra 2018 theta(pi-) dsigma/d(−cos(theta_pim)) Stat. error Syst. error deg mcbn/rad mcbn/rad mcbn/rad 9 0.86335 0.0548376 0.08962512 27 0.736369 0.0452116 0.06308856 45 0.606763 0.0344382 0.05350901 63 0.453632 0.021037 0.03466526 81 0.416571 0.0192032 0.03335431 99 0.383947 0.0171901 0.0355158 117 0.315459 0.0151473 0.02800295 135 0.294255 0.0140373 0.02487237 153 0.337875 0.0258409 0.03417479 171 0.393221 0.0429314 0.05315718