| Subject(s): |
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Physics/Nuclear Experiment
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| Title: |
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Evolution of the $N=28$ shell closure: a test bench for nuclear forces |
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| Author: |
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O. Sorlin1, M.-G. Porquet2 |
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| Laboratory: |
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| Research team: |
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CSNSM SNO |
| Abstract: |
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The evolution of the $N=28$ shell closure is investigated far from stability. Using the latest results obtained from various experimental techniques, we discuss the main properties of the $N=28$ isotones, as well as those of the $N=27$ and $N=29$ isotones. Experimental results are confronted to various theoretical predictions. These studies pinpoint the effects of several terms of the nucleon-nucleon interaction, such as the central, the spin-orbit, the tensor and the three-body force components, to account for the modification of the $N=28$ shell gap and spin-orbit splittings. Analogies between the evolution of the $N=28$ shell closure and other magic numbers originating from the spin-orbit interaction are proposed ($N=14,50, 82$ and $90$). More generally, questions related to the evolution of nuclear forces towards the drip-line, in bubble nuclei, and for nuclei involved in the r-process nucleosynthesis are proposed and discussed. |
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| Document of the type: |
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Conference proceedings |
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Publication or writing
date: |
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2013 |
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| Presentation date: |
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2012 |
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| : |
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Physica Scripta |
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| Audience: |
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international |
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| Volume: |
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T152 |
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| Page/Article: |
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014003 |
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| Conference name: |
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Nobel Symposium: Physics with Radioactive Beams |
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| Conference city: |
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Göteborg |
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| Conference country: |
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Sweden |
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| Conference starting date: |
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2012-06-09 |
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| Conference closing date: |
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2012-06-15 |
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| Speaker: |
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O. Sorlin |
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| Internal call number: |
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GANIL P 2012-11, CSNSM SNO |
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| PACS Classification: |
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21.10.-k, 21.30.-x, 21.60.-n, 27.30.+t, 27.40.+z} |
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| Comments: |
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40 pages,15 figures, Procceedings Nobel Symposium 2012, accepted for publication in Physica Scripta |
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