کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8191750 | 1528868 | 2011 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Quadrupole moments of collective structures up to spin â¼65â in 157Er and 158Er: A challenge for understanding triaxiality in nuclei
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موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
فیزیک هسته ای و انرژی بالا
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چکیده انگلیسی
The transition quadrupole moments, Qt, of four weakly populated collective bands up to spin â¼65â in 157,158Er have been measured to be â¼11eb demonstrating that these sequences are associated with large deformations. However, the data are inconsistent with calculated values from cranked Nilsson-Strutinsky calculations that predict the lowest energy triaxial shape to be associated with rotation about the short principal axis. The data appear to favor either a stable triaxial shape rotating about the intermediate axis or, alternatively, a triaxial shape with larger deformation rotating about the short axis. These new results challenge the present understanding of triaxiality in nuclei.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physics Letters B - Volume 702, Issues 2â3, 11 August 2011, Pages 127-130
Journal: Physics Letters B - Volume 702, Issues 2â3, 11 August 2011, Pages 127-130
نویسندگان
X. Wang, M.A. Riley, J. Simpson, E.S. Paul, J. Ollier, R.V.F. Janssens, A.D. Ayangeakaa, H.C. Boston, M.P. Carpenter, C.J. Chiara, U. Garg, D.J. Hartley, D.S. Judson, F.G. Kondev, T. Lauritsen, N.M. Lumley, J. Matta, P.J. Nolan, I. Ragnarsson,