Angular momentum in peripheral fragmentation reactions |
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| Institution: | 1. Technische Hochschule Darmstadt, Institut für Kernphysik, Schloßgartenstraße 9, 64289 Darmstadt, Germany;2. Institute of Physics and Power Engineering, Bondarenko Sq., 249020 Obninsk, Kaluga Region, Russian Federation;3. Gesellschaft für Schwerionenforschung, Planckstraße 1, 64291 Darmstadt, Germany;1. Department of Physics, University of Jammu, Jammu, 180 006, India;2. Department of Physics, Panjab University, Chandigarh, 160 014, India;1. Department of Physics, University of Massachusetts Lowell, Lowell, MA 01854, USA;2. Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA;3. Physics Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA;1. Physique Nucléaire et Physique Quantique (C.P. 229), Université libre de Bruxelles (ULB), 50 avenue F.D. Roosevelt, B-1050 Brussels, Belgium;2. Institut für Kernphysik, Johannes Gutenberg-Universität Mainz, Johann-Joachim-Becher Weg 45, D-55099 Mainz, Germany |
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| Abstract: | The angular momentum induced in peripheral fragmentation reactions at relativistic energies is described on the basis of shell-model considerations. An analytical expression for the spincutoff parameter of prefragments is obtained, and numerical calculations in the framework of the abrasion-ablation model are performed in order to estimate the angular-momentum distribution of prefragments and final fragments. Additionally, an approximative formula is given to calculate the angular-momentum distribution of final fragments. |
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