ENTRY C2870 20230131 C287000000001 SUBENT C2870001 20230131 20240513 C287000100001 BIB 10 23 C287000100002 TITLE Study of the alpha+alpha system below 15 MeV (c.m.) C287000100003 AUTHOR (W.S.Chien,R.E.Brown) C287000100004 INSTITUTE (1USAMIN) C287000100005 REFERENCE (J,PR/C,10,1767,1974) C287000100006 #doi:10.1103/PhysRevC.10.1767 C287000100007 FACILITY (VDGT,1USAMIN) C287000100008 DETECTOR (SIBAR) Detector assemblies were used. One served as C287000100009 a monitor at a fixed angle and the other served to C287000100010 measure differential cross sections.The particle C287000100011 detector was a silicon, surface-barrier type, having C287000100012 a sensitive area of 100 mm2 and a maximum depletion C287000100013 depth of 700 mu-m. C287000100014 SAMPLE The 4He target gas was contained in gas cells C287000100015 enclosed by 6-mu-m-thick Kapton plastic foil. Most of C287000100016 the data were obtained using a 2.3-cm-diam C287000100017 cylindrical brass cell having 1-cm-high windows C287000100018 separated by two posts. Some forward-angle data were C287000100019 obtained using a 3.8-cm-diam brass cell having a C287000100020 3.5-cm-long snout. C287000100021 METHOD (EXTB) C287000100022 ADD-RES (POT) A phase-shift analysis, a two-level R-matrix C287000100023 and potential analyses. C287000100024 HISTORY (20230129C) OG C287000100025 ENDBIB 23 0 C287000100026 NOCOMMON 0 0 C287000100027 ENDSUBENT 26 0 C287000199999 SUBENT C2870002 20230131 20240513 C287000200001 BIB 4 20 C287000200002 REACTION (2-HE-4(A,EL)2-HE-4,,DA) C287000200003 CORRECTION Corrected for gas purity, 4He equation of state, C287000200004 electronic dead time, slit scattering, detector C287000200005 efficiency. C287000200006 ERR-ANALYS (ERR-1) The lowest-order geometry factor C287000200007 (ERR-2) Gas pressure C287000200008 (ERR-3) Gas temperature C287000200009 (ERR-4) Gas purity C287000200010 (ERR-5) Beam-charge collection C287000200011 (ERR-6,,0.4) Counting statistics C287000200012 (ERR-7,,0.1) Background subtraction C287000200013 (ERR-8,,0.05) Electronic dead time C287000200014 (ERR-9) Slit scattering C287000200015 (ERR-10,,0.06) Detector efficiency C287000200016 (ERR-11,,0.02) Angular asymmetry C287000200017 (ERR-12,,0.80) Absolute angle C287000200018 (ERR-13) An additional standard deviation in the C287000200019 absolute cross section scale C287000200020 (DATA-ERR) Relative uncertainty given. C287000200021 STATUS (TABLE,,W.S.Chien+,J,PR/C,10,1767,1974) Table II C287000200022 ENDBIB 20 0 C287000200023 COMMON 7 6 C287000200024 ERR-1 ERR-2 ERR-3 ERR-4 ERR-5 ERR-9 C287000200025 ERR-13 C287000200026 PER-CENT PER-CENT PER-CENT PER-CENT PER-CENT PER-CENT C287000200027 PER-CENT C287000200028 0.23 0.1 0.1 0.04 0.1 0.03C287000200029 0.30 C287000200030 ENDCOMMON 6 0 C287000200031 DATA 4 249 C287000200032 EN ANG-CM DATA-CM DATA-ERR C287000200033 MEV ADEG MB/SR PER-CENT C287000200034 18.00 22.03 961.9 0.37 C287000200035 18.00 24.03 856.0 0.49 C287000200036 18.00 26.03 747.8 0.47 C287000200037 18.00 28.03 652.9 0.51 C287000200038 18.00 30.04 557.6 0.55 C287000200039 18.00 32.04 478.1 0.63 C287000200040 18.00 34.04 399.9 0.62 C287000200041 18.00 36.04 328.0 0.65 C287000200042 18.00 38.04 270.9 0.70 C287000200043 18.00 40.04 219.2 0.70 C287000200044 18.00 42.05 181.4 0.75 C287000200045 18.00 44.05 145.6 0.78 C287000200046 18.00 46.05 120.24 0.74 C287000200047 18.00 48.05 97.60 0.73 C287000200048 18.00 50.05 79.81 0.72 C287000200049 18.00 52.05 69.17 0.60 C287000200050 18.00 54.06 60.35 0.57 C287000200051 18.00 56.06 56.78 0.51 C287000200052 18.00 58.06 54.64 0.48 C287000200053 18.00 60.06 55.79 0.53 C287000200054 18.00 62.06 60.18 0.53 C287000200055 18.00 64.06 65.85 0.56 C287000200056 18.00 66.06 74.78 0.57 C287000200057 18.00 68.06 84.77 0.60 C287000200058 18.00 70.07 97.20 0.62 C287000200059 18.00 72.07 110.83 0.59 C287000200060 18.00 74.07 126.28 0.55 C287000200061 18.00 76.07 138.16 0.52 C287000200062 18.00 78.07 152.67 0.49 C287000200063 18.00 80.07 165.18 0.47 C287000200064 18.00 82.07 177.75 0.38 C287000200065 18.00 84.07 189.06 0.43 C287000200066 18.00 86.07 193.00 0.36 C287000200067 18.00 88.07 198.71 0.42 C287000200068 18.00 90.07 199.16 0.42 C287000200069 21.12 22.03 1227.8 0.57 C287000200070 21.12 24.03 1030.4 0.67 C287000200071 21.12 26.04 831.9 0.76 C287000200072 21.12 28.04 667.7 0.84 C287000200073 21.12 30.04 523.6 0.88 C287000200074 21.12 32.04 398.0 0.96 C287000200075 21.12 34.05 302.1 0.86 C287000200076 21.12 35.05 269.4 0.91 C287000200077 21.12 36.05 237.5 0.92 C287000200078 21.12 38.05 188.8 0.71 C287000200079 21.12 40.05 164.8 0.65 C287000200080 21.12 42.05 154.05 0.47 C287000200081 21.12 45.06 155.02 0.49 C287000200082 21.12 48.06 168.51 0.45 C287000200083 21.12 50.06 176.70 0.27 C287000200084 21.12 52.06 181.92 0.44 C287000200085 21.12 54.07 181.34 0.44 C287000200086 21.12 56.07 176.21 0.48 C287000200087 21.12 58.07 167.30 0.40 C287000200088 21.12 60.07 154.43 0.44 C287000200089 21.12 62.07 141.27 0.61 C287000200090 21.12 64.07 120.32 0.64 C287000200091 21.12 65.07 114.01 0.71 C287000200092 21.12 68.08 87.89 0.67 C287000200093 21.12 72.08 64.23 0.65 C287000200094 21.12 75.08 54.57 0.61 C287000200095 21.12 78.08 51.79 0.47 C287000200096 21.12 80.08 53.33 0.41 C287000200097 21.12 82.08 56.73 0.48 C287000200098 21.12 84.08 59.67 0.48 C287000200099 21.12 85.08 61.93 0.58 C287000200100 21.12 86.08 63.12 0.47 C287000200101 21.12 88.08 64.01 0.51 C287000200102 21.12 90.08 64.51 0.75 C287000200103 24.11 22.04 2017. 0.75 C287000200104 24.11 24.04 1540. 0.95 C287000200105 24.11 26.04 1125. 1.06 C287000200106 24.11 28.04 781.0 1.25 C287000200107 24.11 30.05 504.4 1.50 C287000200108 24.11 32.05 296.2 1.83 C287000200109 24.11 34.05 152.5 2.29 C287000200110 24.11 36.05 67.2 2.70 C287000200111 24.11 37.06 44.4 2.47 C287000200112 24.11 38.06 31.86 1.58 C287000200113 24.11 39.06 28.33 0.78 C287000200114 24.11 40.06 34.52 1.70 C287000200115 24.11 42.06 65.8 1.86 C287000200116 24.11 43.06 87.7 1.67 C287000200117 24.11 45.07 141.3 1.21 C287000200118 24.11 46.07 166.4 0.99 C287000200119 24.11 47.07 192.6 0.92 C287000200120 24.11 50.07 260.2 0.59 C287000200121 24.11 53.07 301.6 0.40 C287000200122 24.11 55.08 305.02 0.28 C287000200123 24.11 56.08 300.7 0.36 C287000200124 24.11 58.08 285.3 0.38 C287000200125 24.11 60.08 254.7 0.59 C287000200126 24.11 62.08 217.5 0.67 C287000200127 24.11 64.08 173.8 0.90 C287000200128 24.11 66.08 131.43 1.06 C287000200129 24.11 68.09 91.5 1.32 C287000200130 24.11 70.09 57.38 1.67 C287000200131 24.11 72.09 31.26 2.18 C287000200132 24.11 73.09 20.63 2.61 C287000200133 24.11 74.09 13.28 3.00 C287000200134 24.11 75.09 8.26 3.28 C287000200135 24.11 76.09 4.63 3.28 C287000200136 24.11 77.09 3.042 1.89 C287000200137 24.11 80.09 7.79 2.63 C287000200138 24.11 82.09 16.87 1.66 C287000200139 24.11 84.09 25.81 1.12 C287000200140 24.11 86.09 35.22 0.79 C287000200141 24.11 88.09 39.67 0.54 C287000200142 24.11 90.09 42.67 0.50 C287000200143 25.50 24.04 1578. 0.94 C287000200144 25.50 26.04 1154. 1.09 C287000200145 25.50 28.05 759. 1.35 C287000200146 25.50 30.05 485.6 1.60 C287000200147 25.50 32.05 272.8 2.02 C287000200148 25.50 34.06 127.0 2.73 C287000200149 25.50 36.06 38.7 4.52 C287000200150 25.50 37.06 14.8 6.88 C287000200151 25.50 38.06 3.48 11.3 C287000200152 25.50 39.06 1.42 11.8 C287000200153 25.50 40.06 7.85 7.29 C287000200154 25.50 42.07 39.3 13.13 C287000200155 25.50 44.07 87.7 1.81 C287000200156 25.50 46.07 166.4 0.99 C287000200157 25.50 48.07 195.0 0.76 C287000200158 25.50 50.08 238.2 0.52 C287000200159 25.50 52.08 265.7 0.38 C287000200160 25.50 54.08 281.0 0.42 C287000200161 25.50 56.08 277.7 0.37 C287000200162 25.50 58.08 258.1 0.42 C287000200163 25.50 60.09 230.9 0.66 C287000200164 25.50 62.09 193.0 0.79 C287000200165 25.50 64.09 152.8 0.89 C287000200166 25.50 66.09 114.2 1.08 C287000200167 25.50 68.09 78.0 1.33 C287000200168 25.50 70.09 50.41 1.51 C287000200169 25.50 72.09 31.76 1.43 C287000200170 25.50 74.09 22.91 0.82 C287000200171 25.50 75.09 22.03 0.57 C287000200172 25.50 76.10 22.88 0.76 C287000200173 25.50 78.10 31.45 1.14 C287000200174 25.50 80.10 45.51 1.07 C287000200175 25.50 82.10 61.76 0.86 C287000200176 25.50 84.10 78.54 0.73 C287000200177 25.50 86.10 92.16 0.59 C287000200178 25.50 88.10 100.24 0.48 C287000200179 25.50 90.10 104.19 0.44 C287000200180 26.99 22.04 1899. 0.81 C287000200181 26.99 24.04 1471. 0.93 C287000200182 26.99 26.05 1070. 1.07 C287000200183 26.99 28.05 719.9 1.29 C287000200184 26.99 30.05 466.6 1.54 C287000200185 26.99 32.06 272.4 1.85 C287000200186 26.99 34.06 131.4 2.51 C287000200187 26.99 36.06 49.0 3.53 C287000200188 26.99 38.06 15.01 3.55 C287000200189 26.99 40.07 13.25 2.97 C287000200190 26.99 42.07 37.42 2.60 C287000200191 26.99 44.07 74.86 1.73 C287000200192 26.99 46.07 119.1 1.14 C287000200193 26.99 48.07 162.5 0.81 C287000200194 26.99 50.08 194.8 0.58 C287000200195 26.99 52.08 218.24 0.44 C287000200196 26.99 54.08 224.62 0.27 C287000200197 26.99 56.09 223.10 0.36 C287000200198 26.99 58.09 203.38 0.46 C287000200199 26.99 60.09 230.9 0.66 C287000200200 26.99 62.09 181.1 0.65 C287000200201 26.99 64.09 115.1 0.97 C287000200202 26.99 66.10 85.19 1.14 C287000200203 26.99 68.10 60.69 1.15 C287000200204 26.99 70.10 43.14 1.02 C287000200205 26.99 72.10 36.19 0.57 C287000200206 26.99 74.10 37.65 0.71 C287000200207 26.99 76.10 48.13 1.01 C287000200208 26.99 78.10 66.56 0.95 C287000200209 26.99 80.10 88.04 0.85 C287000200210 26.99 82.10 111.63 0.74 C287000200211 26.99 84.10 134.21 0.56 C287000200212 26.99 86.10 152.13 0.55 C287000200213 26.99 90.10 168.05 0.45 C287000200214 28.50 24.04 1280. 0.90 C287000200215 28.50 26.05 936.9 1.04 C287000200216 28.50 28.05 667.2 1.18 C287000200217 28.50 30.06 440.6 1.39 C287000200218 28.50 32.06 269.5 1.66 C287000200219 28.50 34.06 152.4 1.91 C287000200220 28.50 36.06 77.4 2.13 C287000200221 28.50 38.07 40.30 1.63 C287000200222 28.50 40.07 33.55 0.86 C287000200223 28.50 42.07 47.01 1.38 C287000200224 28.50 44.08 72.40 1.27 C287000200225 28.50 46.08 103.89 0.94 C287000200226 28.50 48.08 133.58 0.70 C287000200227 28.50 50.08 156.68 0.54 C287000200228 28.50 52.09 171.62 0.42 C287000200229 28.50 54.09 175.30 0.46 C287000200230 28.50 56.09 169.04 0.52 C287000200231 28.50 58.09 154.09 0.61 C287000200232 28.50 60.10 132.41 0.74 C287000200233 28.50 62.10 107.42 0.89 C287000200234 28.50 64.10 83.09 1.01 C287000200235 28.50 66.10 61.26 1.04 C287000200236 28.50 68.10 44.91 0.98 C287000200237 28.50 70.10 37.59 0.59 C287000200238 28.50 72.10 38.84 0.69 C287000200239 28.50 74.11 48.38 0.97 C287000200240 28.50 76.11 66.38 1.04 C287000200241 28.50 78.11 89.86 0.93 C287000200242 28.50 80.11 118.09 0.80 C287000200243 28.50 82.11 144.87 0.68 C287000200244 28.50 84.11 170.0 0.63 C287000200245 28.50 86.11 188.6 0.54 C287000200246 28.50 88.11 202.02 0.49 C287000200247 28.50 90.11 204.4 0.50 C287000200248 29.50 22.04 1523. 0.78 C287000200249 29.50 24.05 1164. 0.89 C287000200250 29.50 26.05 885.9 1.00 C287000200251 29.50 28.06 616.1 1.17 C287000200252 29.50 30.06 422.6 1.34 C287000200253 29.50 32.06 270.0 1.51 C287000200254 29.50 34.07 160.2 1.71 C287000200255 29.50 36.07 91.5 1.75 C287000200256 29.50 38.07 55.53 1.32 C287000200257 29.50 40.08 44.68 0.54 C287000200258 29.50 42.08 52.96 0.93 C287000200259 29.50 44.08 71.74 1.03 C287000200260 29.50 46.08 95.44 0.87 C287000200261 29.50 48.09 118.46 0.69 C287000200262 29.50 50.09 135.58 0.50 C287000200263 29.50 52.09 145.62 0.38 C287000200264 29.50 54.09 147.60 0.49 C287000200265 29.50 56.10 139.86 0.51 C287000200266 29.50 58.10 127.10 0.65 C287000200267 29.50 60.10 107.83 0.74 C287000200268 29.50 62.10 86.66 0.92 C287000200269 29.50 64.10 66.11 1.04 C287000200270 29.50 66.11 48.49 1.05 C287000200271 29.50 68.11 37.43 0.82 C287000200272 29.50 70.11 33.77 0.54 C287000200273 29.50 72.11 38.34 0.87 C287000200274 29.50 74.11 50.70 1.07 C287000200275 29.50 76.11 70.82 1.05 C287000200276 29.50 78.11 95.55 0.93 C287000200277 29.50 80.11 124.2 0.82 C287000200278 29.50 82.11 153.4 0.69 C287000200279 29.50 84.11 177.5 0.58 C287000200280 29.50 86.11 197.0 0.52 C287000200281 29.50 88.11 209.74 0.46 C287000200282 29.50 90.11 211.2 0.50 C287000200283 ENDDATA 251 0 C287000200284 ENDSUBENT 283 0 C287000299999 ENDENTRY 2 0 C287099999999