Fragmentation cross sections of relativistic 208Pb projectiles |
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| Affiliation: | 1. Technische Hochschule Darmstadt, Institut für Kernphysik, Schlßgartenstraße 9, 64289 Darmstadt, Germany;2. Gesellschaft für Schwerionenforschung, Planckstraßel, 64291 Darmstadt, Germany;3. University of Warsaw, Warsaw, Poland;4. C.E.N. Bordeaux-Gradignan, 33175 Gradignan, France;1. Sino-French Institute of Nuclear Engineering and Technology, Sun Yat-Sen University, Zhuhai 519082, China;2. Joint Institute for Nuclear Astrophysics, Department of Physics, University of Notre Dame, Notre Dame, IN 46556, USA;3. Idaho National Laboratory, Idaho Falls, ID 83415, USA;4. Department of Nuclear Physics, China Institute of Atomic Energy, Beijing 102413, China;5. Institute of Modern Physics, Chinese Academy of Science, Lanzhou, Gansu 730000, China;1. U. Michigan, Ann Arbor, MI 48109, United States;2. U. Notre Dame, Notre Dame, IN 46556, United States;1. Department of Applied Physics, Nanjing University of Science and Technology, Nanjing 210094, China;2. Department of Physics and Key Laboratory of Modern Acoustics, Nanjing University, Nanjing 210093, China;3. Center of Theoretical Nuclear Physics, National Laboratory of Heavy-Ion Accelerator, Lanzhou 730000, China;4. Kavli Institute for Theoretical Physics China, Beijing 100190, China;1. Institute of Particle and Nuclear Physics, Henan Normal University, Xinxiang 453007, China;2. Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China;3. HIRFL, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China |
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| 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 parameterization 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. |
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