کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8183492 | 1527110 | 2013 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Alpha-particle condensation in light hypernuclei
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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
Gas-like α-cluster states are investigated in light Î hypernuclei. The α condensate-type microscopic cluster model wave function is introduced to describe Î hypernuclei. In particular, the analogous state to the famous Hoyle state, the second 0+ state in 12C, is investigated in 13ÎC, with the use of the new type wave function. The Hoyle state is known to have a gas-like 3α cluster structure, where the 3α particles are condensed into an identical S orbit. The second 1/2+ state in 13ÎC is shown to have the 3α+Î structure. A strong shrinkage effect by adding the Î particle is seen for the state, reducing the rms radius from 3.8 fm in the Hoyle state to 2.8 fm. In spite of the shrinkage effect, the α condensate fraction of about 60% still survives, though it is reduced by about 20% from the Hoyle state.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Nuclear Physics A - Volume 914, 20 September 2013, Pages 194-198
Journal: Nuclear Physics A - Volume 914, 20 September 2013, Pages 194-198
نویسندگان
Yasuro Funaki, Taiichi Yamada, Emiko Hiyama, Kiyomi Ikeda,