The giant monopole resonance in the Sn isotopes: Why is Tin so "fluffy"?

被引：88
作者：
Garg, U. [1 ]
Li, T.
Okumura, S.
Akimune, H.
Fujiwara, M.
Harakeh, M. N.
Hashimoto, H.
Itoh, M.
Iwao, Y.
Kawabata, T.
Kawase, K.
Liu, Y.
Marks, R.
Murakami, T.
Nakanishi, K.
Nayak, B. K.
Rao, P. V. Madhusudhana
Sakaguchi, H.
Terashima, Y.
Uchida, M.
Yasuda, Y.
Yosoi, M.
Zenihiro, J.
机构：
[1] Univ Notre Dame, Dept Phys, Notre Dame, IN 46556 USA
[2] Osaka Univ, Nucl Phys Res Ctr, Osaka 5670047, Japan
[3] Konan Univ, Kobe, Hyogo 6588501, Japan
[4] Kernfys Versneller Inst, NL-9747 AA Groningen, Netherlands
[5] Tohoku Univ, Ctr Cyclotron & Radioisotope, Sendai, Miyagi 9808578, Japan
[6] Kyoto Univ, Kyoto 6068502, Japan
[7] Univ Tokyo, Ctr Nucl Study, Tokyo 1130033, Japan
[8] Tokyo Inst Technol, Tokyo 1528850, Japan
来源：
NUCLEAR PHYSICS A | 2007年 / 788卷
基金：
美国国家科学基金会;
关键词：
D O I：
10.1016/j.nuclphysa.2007.01.046
中图分类号：
O57 [原子核物理学、高能物理学];
学科分类号：
070202 ;
摘要：
The isoscalar giant monopole resonance (GMR) has been investigated in a series of Sn isotopes (A=112-124) using inelastic scattering of 400-MeV a particles at extremely forward angles (including 0 degrees). The primary aim of the investigation has been to explore the role of the "symmetry-energy" term in the expression for nuclear incompressibility. It is found that the excitation energies of the GMR in the Sn isotopes are significantly lower than those expected from the nuclear incompressibility previously extracted from the available data on the compressional-mode giant resonances.
引用
收藏
页码：36C / 43C
页数：8
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