Isotopic dependence of the giant monopole resonance in the even-A ^{112-124}Sn isotopes and the asymmetry term in nuclear incompressibility
| Autor: | Li, T., Garg, U., Liu, Y., Marks, R., Nayak, B. K., Rao, P. V. Madhusudhana, Fujiwara, M., Hashimoto, H., Kawase, K., Nakanishi, K., Okumura, S., Yosoi, M., Itoh, M., Ichikawa, M., Matsuo, R., Terazano, T., Uchida, M., Kawabata, T., Akimune, H., Iwao, Y., Murakami, T., Sakaguchi, H., Terashima, S., Yasuda, Y., Zenihiro, J., Harakeh, M. N. |
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| Rok vydání: | 2007 |
| Předmět: | |
| Zdroj: | Phys.Rev.Lett.99:162503,2007 |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1103/PhysRevLett.99.162503 |
| Popis: | 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 $\alpha$ 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 $K_{\tau} = -550 \pm 100$ MeV is obtained for the asymmetry-term in the nuclear incompressibility. Comment: Submitted to Physical Review Letters. 10 pages; 4 figures |
| Databáze: | arXiv |
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