Simultaneous GCSM description of the M1 state and the major collective bands |
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| Affiliation: | 1. CIRAD, UMR TETIS, F-34398 Montpellier, France;2. TETIS, Université Montpellier, AgroParisTech, CIRAD, CNRS, IRSTEA, Montpellier, France;3. Institut Sénégalais de Recherches Agricoles, Bureau d’Analyses Macro-Economiques, BP 3120 Dakar, Senegal;4. Université du Sine Saloum, Elhadj Ibrahima Niass, Senegal;5. Université Gaston Berger, Saint-Louis, Senegal;6. ISRA, Laboratoire National Elevage et Recherche Vétérinaire (LNERV), Dakar, Senegal;7. UMR SELMET Univ. Montpellier, CIRAD, INRA, SupAgro, Montpellier, France;8. LADYSS, UMR 7533 CNRS – Université de Paris, Paris, France |
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| Abstract: | The generalized coherent state model is used to simultaneously describe the magnetic state 1+ and the collective bands: ground, beta and gamma. Effective operators for the M1 and the E2 transitions are derived. Also the M1 form factor for the (e, e′) scattering is treated in the plane wave Born approximation. The symmetry of the lowest gamma band is discussed. The application is made for 154Gd, 154Sm, 164Dy, 168Er, 174Yb, 232Th, 238U. The agreement with the experiment is very good for both the 1+ state and the considered collective bands. |
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