l - th / 0 10 80 01 v 1 1 A ug 2 00 1 Inelastic scattering of protons from 6 , 8 He and 7 , 11 Li in a folding model approach
نویسنده
چکیده
The proton-inelastic scattering from 6,8He and 7,11Li nuclei are studied in a folding model approach. A finite-range, momentum, density and isospin dependent nucleon-nucleon interaction (SBM) is folded with realistic density distributions of the above nuclei. The renormalization factors NR and NI on the real and volume imaginary part of the folded potentials are obtained by analyzing the respective elastic scattering data and kept unaltered for the inelastic analysis at the same energy. The form factors are generated by taking derivatives of the folded potentials and therefore required renormalizations. The β values are extracted by fitting the p + 6,8He,7,11Li inelastic angular distributions. The present analysis of p + 8He inelastic scattering to the 3.57 MeV excited state, including unpublished forward angle data (RIKEN) confirms L = 2 transition. Similar analysis of the p + 6He inelastic scattering angular distribution leading to the 1.8 MeV (L = 2) excited state fails to satisfactorily reproduce the data. PACS number(s): 25.40.Cm, 25.40.Ep, 25.60.-t, 21.45.+v, 21.10.Gv
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L. V. Grigorenko, 3 A. A. Korsheninnikov, and M. V. Zhukov Flerov Laboratory of Nuclear Reactions, JINR, RU-141980 Dubna, Russia Gesellschaft für Schwerionenforschung mbH, Planckstrasse 1, D-64291, Darmstadt, Germany RRC “The Kurchatov Institute”, Kurchatov sq. 1, 123182 Moscow, Russia Department of Physics, Chalmers University of Technology and Göteborg University, S-41296 Göteborg, Sweden (Da...
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Data for the scattering of 6 He, 8 He, 9 Li, and 11 Li from hydrogen are analyzed within a fully microscopic folding model of proton-nucleus scattering. Current data suggest that of these only 11 Li has a noticeable halo. For 6 He, we have also analyzed the complementary reaction 6 Li(γ, π +) 6 He gs. The available data for that reaction support the hypothesis that 6 He may not be a halo nucleu...
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تاریخ انتشار 2008