کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8188141 | 1528833 | 2013 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Neutron-rich hypernuclei: HÎ6 and beyond
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
فیزیک هسته ای و انرژی بالا
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چکیده انگلیسی
Recent experimental evidence presented by the FINUDA Collaboration for a particle-stable HÎ6 has stirred renewed interest in charting domains of particle-stable neutron-rich Î hypernuclei, particularly for unbound nuclear cores. We have studied within a shell-model approach several neutron-rich Î hypernuclei in the nuclear p shell that could be formed in (Ïâ,K+) or in (Kâ,Ï+) reactions on stable nuclear targets. Hypernuclear shell-model input is taken from a theoretically inspired successful fit of γ-ray transitions in p-shell Î hypernuclei which includes also ÎNâΣN coupling (ÎΣ coupling). The particle stability of HÎ6 is discussed and predictions are made for binding energies of HeÎ9, LiÎ10, BeÎ12, BÎ14. None of the large effects conjectured by some authors to arise from ÎΣ coupling is borne out, neither by these realistic p-shell calculations, nor by quantitative estimates outlined for heavier hypernuclei with substantial neutron excess.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physics Letters B - Volume 725, Issues 4â5, 1 October 2013, Pages 445-450
Journal: Physics Letters B - Volume 725, Issues 4â5, 1 October 2013, Pages 445-450
نویسندگان
A. Gal, D.J. Millener,