Neutron transition densities fromSr88(p,p’) atEp=200 MeV
| Autor: | J. Calarco, W.P. Jones, C. Olmer, G.T. Emery, A.D. Bacher, J. P. Connelly, F. W. Hersman, Tom Milliman, M.L. Whiten, M. A. Grimm, B. S. Flanders, James J. Kelly, V. Penumetcha, F. T. Baker, Jochen Heisenberg, Alan Scott |
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| Rok vydání: | 1993 |
| Předmět: | |
| Zdroj: | Physical Review C. 47:2146-2158 |
| ISSN: | 1089-490X 0556-2813 |
| DOI: | 10.1103/physrevc.47.2146 |
| Popis: | New cross section and analyzing power data for [sup 88]Sr([ital p],[ital p][prime]) at [ital E][sub [ital p]]=200 MeV are reported and analyzed together with earlier cross section data. Neutron transition densities for low-lying normal-parity excitations were extracted using an empirical density-dependent effective interaction and an expansion of the radial density which permits analysis of uncertainties due to penetrability, distortion, incompleteness, statistics, and normalization. The densities were compared with shell-model calculations using effective operators based upon a density-dependent Hartree-Fock approximation. Good agreement between theory and experiment is obtained for the 2[sub 1][sup +], 3[sub 1][sup [minus]], and 5[sub 1][sup [minus]] states, but the experimental neutron densities for the 2[sub 2][sup +] and 7[sub 1][sup [minus]] states are considerably stronger than expected. Both proton and neutron transition densities for the 2[sub 2][sup +] state have strong interior lobes, but the theory fails to reproduce the accompanying surface lobes. |
| Databáze: | OpenAIRE |
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