تقرير
Observation of isotonic symmetry for enhanced quadrupole collectivity in neutron-rich 62,64,66Fe isotopes at N=40
| العنوان: | Observation of isotonic symmetry for enhanced quadrupole collectivity in neutron-rich 62,64,66Fe isotopes at N=40 |
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| المؤلفون: | Rother, W., Dewald, A., Iwasaki, H., Lenzi, S. M., Starosta, K., Bazin, D., Baugher, T., Brown, B. A., Crawford, H. L., Fransen, C., Gade, A., Ginter, T. N., Glasmacher, T., Grinyer, G. F., Hackstein, M., Ilie, G., Jolie, J., McDaniel, S., Miller, D., Petkov, P., Pissulla, Th., Ratkiewicz, A., Ur, C. A., Voss, P., Walsh, K. A., Weisshaar, D., Zell, K. -O. |
| المصدر: | Phys.Rev.Lett.106:022502,2011 |
| سنة النشر: | 2010 |
| المجموعة: | Nuclear Experiment Nuclear Theory |
| مصطلحات موضوعية: | Nuclear Experiment, Nuclear Theory |
| الوصف: | The transition rates for the 2_{1}^{+} states in 62,64,66Fe were studied using the Recoil Distance Doppler-Shift technique applied to projectile Coulomb excitation reactions. The deduced E2 strengths illustrate the enhanced collectivity of the neutron-rich Fe isotopes up to N=40. The results are interpreted by the generalized concept of valence proton symmetry which describes the evolution of nuclear structure around N=40 as governed by the number of valence protons with respect to Z~30. The deformation suggested by the experimental data is reproduced by state-of-the-art shell calculations with a new effective interaction developed for the fpgd valence space. Comment: 4 pages, 2 figures |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1103/PhysRevLett.106.022502 |
| URL الوصول: | http://arxiv.org/abs/1006.5297 |
| رقم الأكسشن: | edsarx.1006.5297 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1103/PhysRevLett.106.022502 |
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