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arXiv 0709.0567nucl-ex
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偶A ^{112-124}Sn同位素巨共振的同位素依赖性和核不可压缩性中的不对称项

Isotopic dependence of the giant monopole resonance in the even-A ^{112-124}Sn isotopes and the asymmetry term in nuclear incompressibility

T. Li, U. Garg, Y. Liu, R. Marks, B. K. Nayak, P. V. Madhusudhana Rao, M. Fujiwara, H. Hashimoto, K. Kawase, K. Nakanishi, S. Okumura, M. Yosoi, M. Itoh, M. Ich… 展开作者

T. Li, U. Garg, Y. Liu, R. Marks, B. K. Nayak, P. V. Madhusudhana Rao, M. Fujiwara, H. Hashimoto, K. Kawase, K. Nakanishi, S. Okumura, M. Yosoi, M. Itoh, M. Ichikawa, R. Matsuo, T. Terazano, M. Uchida, T. Kawabata, H. Akimune, Y. Iwao, T. Murakami, H. Sakaguchi, S. Terashima, Y. Yasuda, J. Zenihiro, M. N. Harakeh

摘要:

用400 MeV的$α$粒子在$0^\circ$ -$8.5^\circ$角范围内的非弹性散射测量了Sn偶A同位素(A=112- 124)的巨磁共振(GMR)强度分布。我们发现实验观察到的Sn同位素的GMR能量低于理论计算预测的值,该理论计算很好地再现了$^{208}$ Pb和$^{90}$ Zr中的GMR能量。从GMR数据,一个值的$K_τ = -550 \pm 100$ MeV的核不可压缩性的非对称项获得。

英文摘要:

The strength distributions of the giant monopole resonance (GMR) have been measured in the even-A Sn isotopes (A=112--124) with inelastic scattering of 400-MeV $α$ particles in the angular range $0^\circ$--$8.5^\circ$. We find that the experimentally-observed GMR energies of the Sn isotopes are lower than the values predicted by theoretical calculations that reproduce the GMR energies in $^{208}$Pb and $^{90}$Zr very well. From the GMR data, a value of $K_τ = -550 \pm 100$ MeV is obtained for the asymmetry-term in the nuclear incompressibility.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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