11 B + 12 C, Ecm =23.5 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 8.531 1.026 10.907 0.1119 0.1119 9.363 0.9253 7.468 0.0691 0.0691 10.53 0.9017 12.133 0.1094 0.1094 11.69 0.8562 12.136 0.1039 0.1039 12.36 0.7523 9.832 0.07396 0.07396 13.36 0.6277 9.832 0.06171 0.06171 14.19 0.4973 12.134 0.06034 0.06034 15.19 0.4602 9.831 0.04524 0.04524 16.35 0.4973 12.134 0.06034 0.06034 17.52 0.4602 7.469 0.03437 0.03437 19.02 0.5103 12.136 0.06193 0.06193 20.01 0.4846 14.379 0.06968 0.06968 21.01 0.4846 14.379 0.06968 0.06968 22.01 0.4149 9.832 0.04079 0.04079 22.84 0.3374 9.832 0.03317 0.03317 23.84 0.2473 12.136 0.03001 0.03001 25.01 0.1635 9.829 0.01607 0.01607 25.84 0.1436 12.138 0.01743 0.01743 26.67 0.1295 12.139 0.01572 0.01572 27.84 0.1513 12.135 0.01836 0.01836 28.67 0.1909 12.138 0.02317 0.02317 29.5 0.223 14.377 0.03206 0.03206 30.33 0.2673 9.832 0.02628 0.02628 31.33 0.2743 12.133 0.03328 0.03328 32.33 0.2743 12.133 0.03328 0.03328 33.5 0.2173 14.382 0.03125 0.03125 34.33 0.1513 12.135 0.01836 0.01836 35.33 0.1138 14.377 0.01636 0.01636 36.32 0.0596 12.136 0.007233 0.007233 37.32 0.03462 12.135 0.004201 0.004201 38.16 0.02743 9.833 0.002697 0.002697 39.32 0.03741 13.812 0.005167 0.005167 40.15 0.06117 13.81 0.008447 0.008447 41.15 0.08787 12.132 0.01066 0.01066 41.98 0.1138 14.377 0.01636 0.01636 42.98 0.1168 13.81 0.01613 0.01613 43.98 0.1168 12.132 0.01417 0.01417 44.98 0.1053 9.83 0.01035 0.01035 45.98 0.0813 9.832 0.007993 0.007993 46.64 0.0566 14.379 0.008138 0.008138 47.64 0.03741 16.568 0.006198 0.006198 48.64 0.02473 12.136 0.003001 0.003001 49.47 0.01959 12.139 0.002378 0.002378 50.47 0.0241 9.83 0.002369 0.002369 51.47 0.0394 14.379 0.005665 0.005665 52.3 0.05808 12.135 0.007048 0.007048 53.3 0.06961 12.135 0.008447 0.008447 54.47 0.09017 9.832 0.008865 0.008865 55.46 0.1 9.831 0.009831 0.009831 56.8 0.09496 12.132 0.01152 0.01152 57.79 0.0813 12.136 0.009866 0.009866 58.96 0.06784 13.809 0.009368 0.009368 59.96 0.04973 9.832 0.004889 0.004889 60.96 0.03646 10.903 0.003975 0.003975 61.79 0.0223 12.135 0.002706 0.002706 62.79 0.02173 12.136 0.002637 0.002637 63.79 0.02889 9.831 0.00284 0.00284 64.78 0.04043 9.832 0.003975 0.003975 65.62 0.05237 9.832 0.005149 0.005149 66.45 0.06277 12.135 0.007617 0.007617 67.45 0.07923 12.135 0.009614 0.009614 68.45 0.08344 9.832 0.008203 0.008203 69.28 0.09017 12.133 0.01094 0.01094 70.28 0.07144 9.831 0.007023 0.007023 71.44 0.06277 13.81 0.008668 0.008668 72.11 0.05237 9.832 0.005149 0.005149 73.11 0.04149 12.136 0.005035 0.005035 74.1 0.03287 14.381 0.004727 0.004727 74.94 0.02815 14.377 0.004047 0.004047 75.77 0.03741 9.832 0.003678 0.003678 76.77 0.04602 12.134 0.005584 0.005584 77.6 0.06442 12.133 0.007816 0.007816 78.6 0.06784 14.378 0.009754 0.009754 96.74 0.07923 12.135 0.009614 0.009614 97.74 0.1138 12.136 0.01381 0.01381 98.57 0.14 9.829 0.01376 0.01376 99.57 0.1861 12.134 0.02258 0.02258 100.6 0.241 7.469 0.018 0.018 101.6 0.3122 12.134 0.03788 0.03788 102.7 0.2964 7.47 0.02214 0.02214 103.7 0.2743 10.905 0.02991 0.02991 104.9 0.2605 12.131 0.0316 0.0316 105.6 0.241 9.83 0.02369 0.02369 106.6 0.1767 14.375 0.0254 0.0254 107.4 0.1513 12.135 0.01836 0.01836 108.6 0.1329 10.903 0.01449 0.01449 109.6 0.1436 7.473 0.01073 0.01073 110.4 0.1813 10.905 0.01977 0.01977 111.4 0.2288 12.138 0.02777 0.02777 112.6 0.2605 10.903 0.0284 0.0284 113.9 0.2605 9.832 0.02561 0.02561 115.4 0.2743 10.905 0.02991 0.02991 116.9 0.2815 9.83 0.02767 0.02767 118.7 0.2815 9.83 0.02767 0.02767 120.2 0.3374 9.832 0.03317 0.03317 121.5 0.3553 9.832 0.03493 0.03493 122.5 0.394 8.072 0.0318 0.0318 124 0.3203 9.832 0.03149 0.03149 125.2 0.2673 9.832 0.02628 0.02628 126.4 0.2348 12.138 0.0285 0.0285 127.5 0.223 12.135 0.02706 0.02706 128.7 0.2605 9.832 0.02561 0.02561 129.5 0.3741 12.136 0.0454 0.0454 130.4 0.5237 9.832 0.05149 0.05149 131.5 0.7144 7.468 0.05335 0.05335 132.4 0.8562 10.903 0.09335 0.09335 133.2 0.8562 14.378 0.1231 0.1231 134.5 0.8562 10.903 0.09335 0.09335 135.4 0.772 12.135 0.09368 0.09368 136.5 0.566 9.831 0.05564 0.05564 137.3 0.3646 12.134 0.04424 0.04424 138.3 0.2815 16.793 0.04727 0.04727 139.5 0.2889 9.831 0.0284 0.0284 140.3 0.4722 12.135 0.0573 0.0573 141.5 0.772 9.832 0.0759 0.0759 142.3 1.199 9.825 0.1178 0.1178 143.3 1.329 12.137 0.1613 0.1613 144.3 1.722 12.132 0.2089 0.2089 145.2 1.635 9.829 0.1607 0.1607 146.7 1.552 10.909 0.1693 0.1693 147.5 1.23 12.131 0.1492 0.1492 148.5 0.772 12.135 0.09368 0.09368 149.3 0.6117 14.378 0.08795 0.08795 150.5 0.6961 14.381 0.1001 0.1001 151.5 1.081 9.825 0.1062 0.1062 152.5 2.011 12.134 0.244 0.244 153.3 2.673 9.832 0.2628 0.2628 154.3 3.553 12.134 0.4311 0.4311 155.3 4.484 14.378 0.6447 0.6447 156.3 4.846 10.904 0.5284 0.5284 157.5 4.37 9.831 0.4296 0.4296 158.5 3.553 12.134 0.4311 0.4311 159.3 2.23 9.83 0.2192 0.2192 160.5 1.678 12.134 0.2036 0.2036 161.5 1.593 12.135 0.1933 0.1933 162.3 3.287 14.381 0.4727 0.4727 163.3 4.846 12.134 0.588 0.588 164.3 6.961 12.135 0.8447 0.8447 165.3 10.53 9.83 1.035 1.035 166.3 14 9.829 1.376 1.376 167.5 14.74 14.383 2.12 2.12 168.3 19.09 5.312 1.014 1.014 169.5 16.78 12.134 2.036 2.036 170.5 15.13 12.135 1.836 1.836