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 ∼65ℏ in 157Er and 158Er: A challenge for understanding triaxiality in nuclei
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم فیزیک هسته ای و انرژی بالا
پیش نمایش صفحه اول مقاله
Quadrupole moments of collective structures up to spin ∼65ℏ in 157Er and 158Er: A challenge for understanding triaxiality in nuclei
چکیده انگلیسی
The transition quadrupole moments, Qt, of four weakly populated collective bands up to spin ∼65ℏ in 157,158Er have been measured to be ∼11eb 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 2–3, 11 August 2011, Pages 127-130
نویسندگان
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