Investigation of high spin states in23Na and23Mg and the12C+12C resonance atE c.m.=19.3 MeV |
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Authors: | D. Evers G. Denhöfer W. Assmann A. Harasim P. Konrad C. Ley K. Rudolph P. Sperr |
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Affiliation: | 1. Sektion Physik der Universit?t München, Garching, Germany 2. Physik-Department der Technischen Universit?t München, Garching, Germany
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Abstract: | The resonance in the12C+12C system atE c.m.=19.3 MeV has been studied in the neutron and proton decay channels. From(p, γ), (n, p) and (n, γ) coincidence measurements high spin states could be localized inA=23 nuclei, in23Mg up to possibly 21/2+. These states were resonantly populated. The present data favorJ π=17/2+ for the 9.61 MeV state in23Mg and therefore also for the probable parent state at 9.81 MeV in23Na. AJ π=12+ assignment to the resonance is supported and evidence was found that the resonant excitation of the lowest 15/2+ and 17/2+ states in mass 23 nuclei is caused by a change of the intrinsic structure of the Yrast levels aroundJ π=15/2+ towards larger deformation. |
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