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EnglishFollowing the heavy-ion fusion-evaporation reaction 32S+24Mg at 95 MeV beam energy the lifetimes of analogue states in the Tz=±1/2 A=51 mirror nuclei 51Fe and 51Mn have been measured using the Cologne plunger device coupled to the GASP γ-ray spectrometer. The deduced B(E2;27/2-→23/2-) values afford a unique opportunity to probe isoscalar and isovector polarization charges and to derive effective proton and neutron charges, εp and εn, in the fp shell. A comparison between the experimental results and several different large-scale shell-model calculations yields εp∼1.15e and εn∼0.80e.
| Titolo: | Effective Charges in the fp Shell |
| Autori: | |
| Data di pubblicazione: | 2004 |
| Rivista: | |
| Abstract: | Following the heavy-ion fusion-evaporation reaction 32S+24Mg at 95 MeV beam energy the lifetimes of analogue states in the Tz=±1/2 A=51 mirror nuclei 51Fe and 51Mn have been measured using the Cologne plunger device coupled to the GASP γ-ray spectrometer. The deduced B(E2;27/2-→23/2-) values afford a unique opportunity to probe isoscalar and isovector polarization charges and to derive effective proton and neutron charges, εp and εn, in the fp shell. A comparison between the experimental results and several different large-scale shell-model calculations yields εp∼1.15e and εn∼0.80e. |
| Handle: | http://hdl.handle.net/11577/1351189 |
| Appare nelle tipologie: | 01.01 - Articolo in rivista |
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