CLAS physics database search results Measurement E216M376 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 3.01399 0.170109 0.28979122 27 2.35179 0.086266 0.19170879 45 1.64506 0.0658274 0.12298144 63 1.45915 0.0430218 0.10578673 81 1.31979 0.0381289 0.09932296 99 1.12166 0.0342371 0.08103341 117 0.974532 0.0270764 0.07693133 135 0.980823 0.0451104 0.0774125 153 1.08088 0.046829 0.12064489 171 1.56556 0.117842 0.27879538