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Fragmentation cross sections of relativistic 208Pb projectiles

M. de Jong, K.-H. Schmidt, B. Blank, C. Böckstiegel, T. Brohm, H.-G. Clerc, S. Czajkowski, M. Dornik, H. Geissel, A. Grewe, E. Hanelt, A. Heinz, H. Irnich, A. R. Junghans, A. Magel, G. Münzenberg, F. Nickel, M. Pfützner, A. Piechaczek, C. Scheidenberger, W. Schwab, S. Steinhäuser, K. Sümmerer, W. Trinder, B. Voss, C. Ziegler


Technische Hochschule Darmstadt, Institut für Kernphysik, Schloßgartenstraße 9, 64289 Darmstadt, Germany

Gesellschaft für Schwerionenforschung, Planckstraße 1, 64291 Darmstadt, Germany

University of Warsaw, Warsaw, Poland

C. E. N. Bordeaux-Gradignan, 33175 Gradignan, France


Abstract: Production cross sections of more than 270 isotopes ranging from Z = 59 to Z = 82 were measured in the reaction 208Pb (1 GeV A) + Cu. The method of identifying the projectile fragments and evaluating the production cross sections is described. The experimental data are compared with a modern version of the abrasion-ablation model and with the empirical parametrization EPAX. Apart from deviations in the details they both show an overall good agreement. The cross sections of those fragments which are produced by the removal of protons only test the lower part of the excitation-energy distribution. For the first time, the four-proton removal channel could be observed.


PACS: 25.70.Mn


Keywords: NUCLEAR REACTIONS Cu(208Pb,X), E = 208 GeV; measured isotopical yields, s for isotopes from Z = 59 to Z = 82; deduced 4-proton removal channel evidence. Isotopical separation. Abrasion-ablation model, empirical parametrization EPAX.


Table of the production cross sections: Experimental production cross sections from the fragmentation of 208Pb in copper at 1 A GeV, also available as SATAN analyzers.

(The numbers have automatically been generated with a fixed number of digits)

Z A cross section / mb uncertainty / mb
83 208 0.818950E+00 0.266531E+00
83 207 0.205799E+01 0.461320E+00
83 206 0.356398E+01 0.772276E+00
83 205 0.382863E+01 0.117890E+01
83 203 0.415373E+01 0.194791E+01
83 202 0.519327E+01 0.107320E+01
83 201 0.427865E+01 0.834529E+00
83 199 0.156883E+01 0.854539E+00
83 198 0.180303E+01 0.374923E+00
83 197 0.122875E+01 0.281186E+00
82 207 0.711126E+03 0.135828E+03
82 206 0.184357E+03 0.347455E+02
82 205 0.675833E+02 0.128673E+02
82 204 0.452808E+02 0.866196E+01
82 203 0.340425E+02 0.697841E+01
82 202 0.297368E+02 0.688725E+01
82 201 0.233251E+02 0.452356E+01
82 200 0.208132E+02 0.401227E+01
82 199 0.168871E+02 0.333564E+01
82 197 0.122426E+02 0.249415E+01
82 196 0.913063E+01 0.183211E+01
82 195 0.737893E+01 0.152809E+01
82 190 0.396018E+00 0.105869E+00
82 189 0.178284E+00 0.450524E-01
82 188 0.629413E-01 0.191488E-01
81 209 0.496957E-01 0.222448E-01
81 207 0.271548E+02 0.516090E+01
81 206 0.245769E+02 0.467491E+01
81 205 0.262393E+02 0.554661E+01
81 204 0.268979E+02 0.551088E+01
81 203 0.229833E+02 0.485672E+01
81 202 0.240419E+02 0.508227E+01
81 201 0.240492E+02 0.494770E+01
81 200 0.233554E+02 0.610011E+01
81 199 0.195776E+02 0.411365E+01
81 198 0.216743E+02 0.471020E+01
81 197 0.212103E+02 0.420512E+01
81 196 0.181662E+02 0.507136E+01
81 195 0.168432E+02 0.354886E+01
81 194 0.188772E+02 0.389371E+01
81 193 0.136831E+02 0.287411E+01
81 192 0.866605E+01 0.358661E+01
81 190 0.344313E+01 0.106809E+01
81 189 0.276844E+01 0.728472E+00
81 188 0.179338E+01 0.563623E+00
81 187 0.108115E+01 0.363296E+00
81 186 0.383972E+00 0.140425E+00
81 185 0.879372E-01 0.343526E-01
80 207 0.207411E-01 0.582354E-02
80 206 0.692665E+00 0.133349E+00
80 205 0.165642E+01 0.529621E+00
80 204 0.371817E+01 0.744606E+00
80 202 0.745990E+01 0.217926E+01
80 201 0.746402E+01 0.164211E+01
80 200 0.896158E+01 0.194358E+01
80 199 0.109910E+02 0.223323E+01
80 198 0.109750E+02 0.225109E+01
80 197 0.115723E+02 0.240861E+01
80 196 0.142770E+02 0.299863E+01
80 195 0.126600E+02 0.249934E+01
80 194 0.157578E+02 0.307727E+01
80 193 0.154300E+02 0.308882E+01
80 192 0.159069E+02 0.335849E+01
80 189 0.899955E+01 0.189289E+01
80 188 0.828833E+01 0.177446E+01
80 187 0.509162E+01 0.112675E+01
80 186 0.329674E+01 0.864116E+00
80 185 0.229661E+01 0.741006E+00
80 184 0.102349E+01 0.257670E+00
80 183 0.575461E+00 0.202704E+00
80 182 0.123435E+00 0.512664E-01
79 205 0.172066E-01 0.551657E-02
79 204 0.816479E-01 0.158792E-01
79 203 0.113860E+00 0.350808E-01
79 202 0.842352E+00 0.180021E+00
79 198 0.255811E+01 0.609121E+00
79 197 0.384197E+01 0.120867E+01
79 196 0.411216E+01 0.115507E+01
79 195 0.694129E+01 0.143528E+01
79 194 0.718065E+01 0.147629E+01
79 193 0.832681E+01 0.164336E+01
79 192 0.103392E+02 0.205500E+01
79 191 0.110980E+02 0.219035E+01
79 190 0.126624E+02 0.252232E+01
79 189 0.107938E+02 0.264987E+01
79 188 0.124767E+02 0.289604E+01
79 187 0.984842E+01 0.226154E+01
79 186 0.925533E+01 0.215651E+01
79 185 0.847612E+01 0.180552E+01
79 184 0.425548E+01 0.116694E+01
79 183 0.287273E+01 0.639594E+00
79 182 0.217498E+01 0.533541E+00
79 181 0.145027E+01 0.402884E+00
79 180 0.516029E+00 0.196970E+00
78 204 0.130512E-03 0.100911E-03
78 203 0.913584E-03 0.260399E-03
78 202 0.149720E-01 0.359330E-02
78 201 0.460585E-01 0.955675E-02
78 196 0.648301E+00 0.172246E+00
78 195 0.994477E+00 0.278634E+00
78 194 0.166002E+01 0.534324E+00
78 193 0.264786E+01 0.898412E+00
78 192 0.324625E+01 0.965263E+00
78 191 0.362708E+01 0.966865E+00
78 190 0.446722E+01 0.113993E+01
78 189 0.650776E+01 0.179084E+01
78 188 0.779865E+01 0.161101E+01
78 187 0.669784E+01 0.206027E+01
78 186 0.810326E+01 0.187087E+01
78 185 0.930785E+01 0.213177E+01
78 184 0.821921E+01 0.183880E+01
78 183 0.801471E+01 0.227096E+01
78 181 0.633472E+01 0.173573E+01
78 180 0.394992E+01 0.921883E+00
78 179 0.222100E+01 0.598446E+00
78 178 0.724041E+00 0.368893E+00
78 176 0.256187E+00 0.704235E-01
78 175 0.172675E+00 0.413947E-01
77 194 0.135443E+00 0.396788E-01
77 193 0.264799E+00 0.786284E-01
77 192 0.407851E+00 0.119220E+00
77 191 0.556991E+00 0.172390E+00
77 190 0.100562E+01 0.547869E+00
77 189 0.165698E+01 0.553105E+00
77 188 0.228892E+01 0.627701E+00
77 187 0.289686E+01 0.875527E+00
77 185 0.468223E+01 0.139881E+01
77 184 0.717897E+01 0.182121E+01
77 183 0.883848E+01 0.214633E+01
77 182 0.764652E+01 0.188723E+01
77 180 0.711969E+01 0.231946E+01
77 179 0.724221E+01 0.185687E+01
77 178 0.599433E+01 0.169249E+01
77 177 0.348596E+01 0.909982E+00
77 176 0.909629E+00 0.267368E+00
77 175 0.810187E+00 0.216695E+00
77 174 0.414986E+00 0.129026E+00
77 173 0.138243E+00 0.575862E-01
76 191 0.821789E-01 0.341313E-01
76 190 0.141530E+00 0.528389E-01
76 189 0.194795E+00 0.710347E-01
76 187 0.674221E+00 0.261328E+00
76 186 0.110618E+01 0.450769E+00
76 185 0.141472E+01 0.528808E+00
76 183 0.297244E+01 0.122244E+01
76 182 0.511852E+01 0.155620E+01
76 181 0.559693E+01 0.171867E+01
76 177 0.775815E+01 0.214911E+01
76 176 0.623242E+01 0.172260E+01
76 173 0.211990E+01 0.474102E+00
76 172 0.842820E+00 0.239678E+00
75 182 0.109724E+01 0.297816E+00
75 181 0.170817E+01 0.430283E+00
75 180 0.157352E+01 0.774868E+00
75 176 0.663713E+01 0.150596E+01
75 175 0.465000E+01 0.179923E+01
75 171 0.314481E+01 0.695031E+00
75 170 0.117138E+01 0.648004E+00
74 181 0.438322E+00 0.109162E+00
74 180 0.704036E+00 0.195006E+00
74 179 0.951846E+00 0.229178E+00
74 178 0.114952E+01 0.304702E+00
74 176 0.333857E+01 0.828750E+00
74 175 0.480820E+01 0.118017E+01
74 174 0.540486E+01 0.145877E+01
74 173 0.516204E+01 0.185566E+01
74 170 0.609093E+01 0.142777E+01
74 169 0.487933E+01 0.110110E+01
74 168 0.233545E+01 0.852961E+00
73 179 0.126769E+00 0.754803E-01
73 178 0.330174E+00 0.947652E-01
73 177 0.537159E+00 0.175245E+00
73 176 0.791414E+00 0.206502E+00
73 174 0.184289E+01 0.642606E+00
73 173 0.271751E+01 0.102736E+01
73 172 0.399126E+01 0.123728E+01
73 171 0.519363E+01 0.142616E+01
73 169 0.543881E+01 0.125690E+01
73 168 0.639932E+01 0.147465E+01
73 167 0.557289E+01 0.135096E+01
73 166 0.337396E+01 0.799899E+00
72 177 0.787833E-01 0.522757E-01
72 176 0.165445E+00 0.780800E-01
72 175 0.270728E+00 0.878557E-01
72 174 0.477713E+00 0.169055E+00
72 172 0.123769E+01 0.568700E+00
72 171 0.234865E+01 0.735095E+00
72 170 0.388030E+01 0.117952E+01
72 169 0.398544E+01 0.104682E+01
72 167 0.519259E+01 0.207254E+01
72 166 0.610068E+01 0.142924E+01
72 165 0.588006E+01 0.139619E+01
71 161 0.421157E+01 0.917149E+00
71 160 0.226995E+01 0.629778E+00
71 159 0.777691E+00 0.324337E+00
70 160 0.489314E+01 0.147887E+01
70 159 0.494468E+01 0.148491E+01
70 158 0.358444E+01 0.109924E+01
70 157 0.140135E+01 0.118771E+01
69 158 0.467136E+01 0.145331E+01
69 157 0.548321E+01 0.134778E+01
69 156 0.429670E+01 0.993712E+00
69 155 0.207539E+01 0.698191E+00
68 156 0.400137E+01 0.138089E+01
68 155 0.485260E+01 0.147414E+01
68 154 0.371068E+01 0.135191E+01
67 162 0.987939E-01 0.557339E-01
67 161 0.135579E+00 0.584022E-01
67 160 0.121916E+00 0.573283E-01
67 157 0.181122E+01 0.580525E+00
67 156 0.187548E+01 0.587689E+00
67 152 0.449021E+01 0.927258E+00
67 151 0.278057E+01 0.648624E+00
67 150 0.117946E+01 0.528931E+00
66 159 0.840799E-01 0.449119E-01
66 158 0.165007E+00 0.896171E-01
66 156 0.931080E+00 0.359029E+00
66 155 0.126887E+01 0.527258E+00
66 154 0.154083E+01 0.552262E+00
66 153 0.124301E+01 0.525077E+00
66 152 0.155981E+01 0.646566E+00
66 151 0.346827E+01 0.756645E+00
66 150 0.498774E+01 0.110040E+01
66 149 0.387359E+01 0.872156E+00
66 148 0.142150E+01 0.549550E+00
65 157 0.851309E-01 0.449818E-01
65 156 0.113508E+00 0.567152E-01
65 155 0.977429E-01 0.656813E-01
65 154 0.536860E+00 0.292277E+00
65 153 0.108940E+01 0.311776E+00
65 152 0.138095E+01 0.350208E+00
65 151 0.138173E+01 0.350317E+00
65 149 0.427699E+01 0.111202E+01
65 148 0.506362E+01 0.111257E+01
65 147 0.471785E+01 0.100840E+01
65 146 0.225519E+01 0.640533E+00
65 145 0.562837E+00 0.398487E+00
64 152 0.206123E+00 0.874257E-01
64 151 0.608180E+00 0.333684E+00
64 150 0.612883E+00 0.261822E+00
64 146 0.426450E+01 0.111032E+01
64 145 0.292752E+01 0.730321E+00
62 148 0.143468E+00 0.551804E-01
62 147 0.185353E+00 0.594254E-01
61 147 0.842512E-01 0.288130E-01
61 146 0.102064E+00 0.518245E-01
61 145 0.169465E+00 0.577257E-01
61 141 0.188142E+01 0.484038E+00
61 140 0.257819E+01 0.586563E+00
61 139 0.189728E+01 0.637846E+00
61 137 0.224027E+01 0.930450E+00
61 136 0.228176E+01 0.934005E+00
61 135 0.945893E+00 0.528628E+00
61 134 0.291013E+00 0.177441E+00
61 133 0.358960E+00 0.201658E+00
61 132 0.116345E+00 0.872459E-01
60 144 0.876212E-01 0.508822E-01
60 143 0.103027E+00 0.518917E-01
60 142 0.150208E+00 0.558104E-01
60 139 0.147419E+01 0.431304E+00
60 138 0.190389E+01 0.487132E+00
60 137 0.188340E+01 0.484310E+00
60 135 0.264684E+01 0.967432E+00
60 134 0.296214E+01 0.128814E+01
60 133 0.139893E+01 0.563003E+00
60 132 0.561109E+00 0.170424E+00
60 131 0.513102E+00 0.167742E+00
60 130 0.280834E+00 0.995973E-01
60 129 0.831943E-01 0.652472E-01
59 142 0.601794E-01 0.265966E-01
59 141 0.124692E+00 0.535446E-01
59 140 0.104712E+00 0.520107E-01
59 137 0.859396E+00 0.367891E+00
59 136 0.233359E+01 0.793336E+00
59 135 0.296161E+01 0.864206E+00
59 133 0.273811E+01 0.976364E+00
59 132 0.323761E+01 0.146038E+01
59 131 0.219879E+01 0.926948E+00
59 130 0.652277E+00 0.280389E+00
59 129 0.696805E+00 0.248469E+00
59 128 0.369518E+00 0.182642E+00
59 127 0.660909E-01 0.440196E-01