11 B + 12 C, Ecm =33.5 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 7.697 0.8377 9.626 0.08063 0.08063 8.7 0.7017 9.627 0.06755 0.06755 9.703 0.5448 9.628 0.05245 0.05245 10.87 0.423 10.653 0.04506 0.04506 11.54 0.3123 9.626 0.03006 0.03006 12.55 0.3045 11.882 0.03618 0.03618 13.55 0.3455 14.087 0.04867 0.04867 14.39 0.4125 7.31 0.03015 0.03015 15.39 0.445 13.486 0.06001 0.06001 16.56 0.3921 7.31 0.02866 0.02866 17.4 0.3285 4.935 0.01621 0.01621 18.23 0.2247 11.887 0.02671 0.02671 19.23 0.1355 7.309 0.009903 0.009903 20.41 0.08812 7.31 0.006441 0.006441 21.41 0.1321 9.63 0.01272 0.01272 22.24 0.1256 9.626 0.01209 0.01209 35.96 0.1288 11.887 0.01531 0.01531 36.79 0.08591 9.627 0.00827 0.00827 37.8 0.05731 9.627 0.005517 0.005517 39.13 0.03123 10.651 0.003326 0.003326 39.3 0.01224 7.313 0.000895 0.000895 40.14 0.01617 11.887 0.001922 0.001922 40.47 0.0198 9.627 0.001906 0.001906 40.81 0.01355 2.499 0.0003385 0.0003385 41.31 0.02305 7.311 0.001685 0.001685 42.14 0.03203 7.309 0.002341 0.002341 42.48 0.04564 11.885 0.005424 0.005424 42.81 0.03823 9.626 0.00368 0.00368 43.65 0.0445 11.884 0.005288 0.005288 44.15 0.05731 9.627 0.005517 0.005517 45.15 0.04681 9.627 0.004506 0.004506 45.49 0.05588 10.652 0.005952 0.005952 45.82 0.06029 4.935 0.002975 0.002975 46.16 0.03045 7.311 0.002226 0.002226 47.16 0.02247 2.499 0.0005615 0.0005615 47.33 0.04339 7.311 0.003172 0.003172 48.16 0.01256 9.626 0.001209 0.001209 48.5 0.03045 9.626 0.002931 0.002931 49.17 0.00975 7.887 0.0007689 0.0007689 49.33 0.0255 11.887 0.003031 0.003031 50 0.01321 9.63 0.001272 0.001272 50.67 0.01701 4.936 0.0008395 0.0008395 51.01 0.02247 11.887 0.002671 0.002671 51.84 0.0179 7.883 0.001411 0.001411 52.01 0.02616 11.881 0.003108 0.003108 52.68 0.02822 7.311 0.002063 0.002063 53.68 0.04801 9.626 0.004621 0.004621 54.69 0.0423 9.627 0.004072 0.004072 55.86 0.03634 16.236 0.0059 0.0059 57.03 0.03544 16.231 0.005752 0.005752 58.03 0.03823 11.884 0.004543 0.004543 59.2 0.02683 11.883 0.003188 0.003188 60.2 0.02136 33.296 0.007112 0.007112 61.04 0.01617 41.225 0.006666 0.006666 62.21 0.01537 46.891 0.007207 0.007207 63.38 0.0255 39.726 0.01013 0.01013 64.38 0.0255 36.589 0.00933 0.00933 65.55 0.02894 34.969 0.01012 0.01012 66.56 0.03123 34.967 0.01092 0.01092 67.9 0.03123 38.169 0.01192 0.01192 68.56 0.02364 44.121 0.01043 0.01043 69.57 0.02031 49.484 0.01005 0.01005 70.57 0.01745 56.608 0.009878 0.009878 71.74 0.01499 60.794 0.009113 0.009113 105.4 0.09037 13.489 0.01219 0.01219 106.4 0.08167 9.627 0.007862 0.007862 107.5 0.08377 11.884 0.009955 0.009955 109.2 0.07764 28.027 0.02176 0.02176 110.4 0.06842 34.961 0.02392 0.02392 111.4 0.0757 9.627 0.007287 0.007287 112.4 0.1026 28.022 0.02875 0.02875 113.2 0.1321 41.219 0.05445 0.05445 114.2 0.1835 38.18 0.07006 0.07006 115.7 0.2136 16.236 0.03468 0.03468 117.4 0.2424 31.589 0.07657 0.07657 119.1 0.2191 24.295 0.05323 0.05323 120.4 0.2083 36.582 0.0762 0.0762 121.4 0.2083 19.376 0.04036 0.04036 122.4 0.1931 16.23 0.03134 0.03134 123.2 0.2305 11.883 0.02739 0.02739 124.1 0.1462 11.881 0.01737 0.01737 124.2 0.2487 14.086 0.03503 0.03503 125.3 0.2364 13.486 0.03188 0.03188 126.3 0.3203 11.883 0.03806 0.03806 126.3 0.2191 20.366 0.04462 0.04462 127.1 0.3544 11.883 0.04211 0.04211 127.4 0.2191 14.085 0.03086 0.03086 128.1 0.3455 11.885 0.04106 0.04106 129.3 0.3455 14.087 0.04867 0.04867 130.3 0.3921 11.885 0.0466 0.0466 131.1 0.4681 11.885 0.05563 0.05563 131.3 0.3285 11.882 0.03903 0.03903 131.9 0.3823 9.626 0.0368 0.0368 132.3 0.4564 7.31 0.03336 0.03336 133.3 0.3544 9.625 0.03411 0.03411 134.6 0.3634 14.087 0.05119 0.05119 135.1 0.2031 16.234 0.03297 0.03297 136.1 0.4022 11.883 0.04779 0.04779 137.1 0.3634 10.653 0.03871 0.03871 137.3 0.4801 11.883 0.05705 0.05705 138.3 0.6029 11.883 0.07164 0.07164 139.1 0.7764 9.627 0.07474 0.07474 140.1 0.8812 9.626 0.08482 0.08482 141.5 1.026 11.882 0.1219 0.1219 142.1 1.194 9.624 0.1149 0.1149 143.3 1.462 9.624 0.1407 0.1407 144.1 1.026 11.882 0.1219 0.1219 154.8 2.031 33.29 0.6761 0.6761 155.9 2.424 18.33 0.4443 0.4443 156.7 3.045 9.626 0.2931 0.2931 157.7 4.564 19.378 0.8844 0.8844 158.9 7.963 11.885 0.9464 0.9464 160.4 6.842 11.884 0.8131 0.8131 161.7 7.57 16.394 1.241 1.241 162.9 6.504 9.627 0.6261 0.6261 164 7.381 14.091 1.04 1.04 164.9 8.591 16.401 1.409 1.409 165.9 8.591 11.885 1.021 1.021 166.9 12.56 9.626 1.209 1.209 167.9 18.35 11.886 2.181 2.181 168.7 21.91 9.626 2.109 2.109 169.9 25.5 11.887 3.031 3.031