11 B + 12 C, Ecm =20.9 MeV S.Albergo, S.Costa, R.Potenza, J.Romanski, C.Tuve, L.Jarczyk, B.Kamys, A.Magiera, A.Strzalkowaki, R.Barna, V.DAmico, D.De Pasquale, G. Mannino,Physical Review, C43 (1991) 2704-2710 (access to the source may be restricted by owner!)
CommentsBeam quality: The beam intensity was usually adjusted to 30-50 nA. Target: Target was about 100 mcg/cm2 thick. Data obtained: author graph (digitized with GSYS 2.4 ) The measurement were performed at the Laboratorio Nazionale del Sud in Catania using SMP Tandem Van de Graaff accelerator. The estimated error of absolute normalization is 7%. For the very forward angular region beam was reduced to the value 1 nA on 20 mcg/cm2 target.
Θcm (deg) σ/σR (ratio) error (%) +δσ -δσ 8.364 1 10.65 0.1065 0.1065 9.529 0.9507 7.31 0.06949 0.06949 10.53 0.9269 11.89 0.1102 0.1102 11.69 0.9269 11.89 0.1102 0.1102 12.69 0.8377 9.626 0.08063 0.08063 13.69 0.757 9.627 0.07287 0.07287 14.02 0.6842 7.31 0.05001 0.05001 15.02 0.5731 9.627 0.05517 0.05517 16.19 0.4924 11.885 0.05852 0.05852 17.02 0.3634 7.312 0.02657 0.02657 18.02 0.3823 11.884 0.04543 0.04543 19.18 0.4022 14.086 0.05665 0.05665 20.01 0.4339 14.084 0.06111 0.06111 21.18 0.423 9.627 0.04072 0.04072 22.34 0.3921 9.626 0.03774 0.03774 22.84 0.3544 11.883 0.04211 0.04211 23.68 0.2968 9.627 0.02857 0.02857 24.84 0.2487 11.882 0.02955 0.02955 25.84 0.198 11.884 0.02353 0.02353 26.67 0.1537 11.887 0.01827 0.01827 27.67 0.1462 11.881 0.01737 0.01737 28.67 0.1617 14.088 0.02278 0.02278 29.83 0.1931 9.622 0.01858 0.01858 30.83 0.2136 11.887 0.02539 0.02539 32 0.2247 11.887 0.02671 0.02671 33.16 0.2191 14.085 0.03086 0.03086 34.16 0.198 9.627 0.01906 0.01906 35.16 0.1499 14.09 0.02112 0.02112 36.16 0.09269 11.89 0.01102 0.01102 36.99 0.0757 11.886 0.008997 0.008997 37.82 0.05448 9.628 0.005245 0.005245 38.99 0.04681 13.487 0.006313 0.006313 39.82 0.0505 13.488 0.006811 0.006811 40.98 0.06842 16.238 0.01111 0.01111 41.98 0.0757 14.082 0.01066 0.01066 42.82 0.0975 13.488 0.01315 0.01315 43.81 0.1164 11.882 0.01383 0.01383 44.81 0.1164 9.622 0.0112 0.0112 45.81 0.1107 9.621 0.01065 0.01065 46.64 0.09507 14.085 0.01339 0.01339 47.64 0.07963 16.238 0.01293 0.01293 48.47 0.06029 11.883 0.007164 0.007164 49.47 0.0423 9.627 0.004072 0.004072 50.31 0.03285 9.626 0.003162 0.003162 50.97 0.02751 14.09 0.003876 0.003876 52.14 0.02751 16.235 0.004466 0.004466 124.5 0.2305 11.883 0.02739 0.02739 125.5 0.3728 9.625 0.03588 0.03588 126.5 0.3921 9.626 0.03774 0.03774 127.4 0.4339 11.883 0.05156 0.05156 128.5 0.4339 11.883 0.05156 0.05156 129.4 0.4924 13.488 0.06641 0.06641 130.4 0.4564 9.626 0.04393 0.04393 131.7 0.4125 10.65 0.04393 0.04393 132.5 0.4125 11.884 0.04902 0.04902 133.4 0.3634 11.885 0.04319 0.04319 134.5 0.3285 9.626 0.03162 0.03162 135.4 0.2487 9.627 0.02394 0.02394 136.5 0.3544 9.625 0.03411 0.03411 137.5 0.3045 11.882 0.03618 0.03618 138.5 0.3728 11.884 0.0443 0.0443 139.5 0.4681 9.627 0.04506 0.04506 140.3 0.6183 11.885 0.07348 0.07348 141.3 0.8167 9.627 0.07862 0.07862 142.3 0.9507 13.485 0.1282 0.1282 143.7 1 9.626 0.09626 0.09626 144.5 1 11.88 0.1188 0.1188 145.2 0.7963 14.091 0.1122 0.1122 146.2 0.7963 9.628 0.07666 0.07666 147.2 0.757 9.627 0.07287 0.07287 148.3 0.6029 11.883 0.07164 0.07164 149.7 0.5878 10.652 0.06261 0.06261 150.5 0.6342 14.086 0.08933 0.08933 151.3 0.8167 11.885 0.09706 0.09706 152.3 1.164 10.653 0.124 0.124 153.3 1.745 11.886 0.2074 0.2074 154.2 2.136 9.626 0.2056 0.2056 155.5 2.487 11.882 0.2955 0.2955 156.5 2.683 16.393 0.4398 0.4398 157.3 2.487 10.652 0.2649 0.2649 158.2 2.136 9.626 0.2056 0.2056 159.5 1.882 11.887 0.2237 0.2237 160.3 1.617 14.088 0.2278 0.2278 161.3 1.537 9.63 0.148 0.148 162.5 2.683 10.649 0.2857 0.2857 163.3 2.968 11.887 0.3528 0.3528 164.3 5.312 10.652 0.5658 0.5658 165.3 5.588 7.311 0.4085 0.4085 166 8.167 11.885 0.9706 0.9706 166.8 9.269 11.868 1.1 1.1 168 10 9.626 0.9626 0.9626 169.3 11.64 10.653 1.24 1.24 170.3 10.26 9.623 0.9873 0.9873