Complete electric dipole response and the neutron skin in Pb208

A. Tamii, I. Poltoratska, P. Von Neumann-Cosel, Y. Fujita, T. Adachi, C. A. Bertulani, J. Carter, M. Dozono, H. Fujita, K. Fujita, K. Hatanaka, D. Ishikawa, M. Itoh, T. Kawabata, Y. Kalmykov, A. M. Krumbholz, E. Litvinova, H. Matsubara, K. Nakanishi, R. NevelingH. Okamura, H. J. Ong, B. Özel-Tashenov, V. Yu Ponomarev, A. Richter, B. Rubio, H. Sakaguchi, Y. Sakemi, Y. Sasamoto, Y. Shimbara, Y. Shimizu, F. D. Smit, T. Suzuki, Y. Tameshige, J. Wambach, R. Yamada, M. Yosoi, J. Zenihiro

研究成果: Contribution to journalArticle査読

338 被引用数 (Scopus)

抄録

A benchmark experiment on Pb208 shows that polarized proton inelastic scattering at very forward angles including 0° is a powerful tool for high-resolution studies of electric dipole (E1) and spin magnetic dipole (M1) modes in nuclei over a broad excitation energy range to test up-to-date nuclear models. The extracted E1 polarizability leads to a neutron skin thickness r skin=0.156-0.021+0.025fm in Pb208 derived within a mean-field model, thereby constraining the symmetry energy and its density dependence relevant to the description of neutron stars.

本文言語英語
論文番号062502
ジャーナルPhysical review letters
107
6
DOI
出版ステータス出版済み - 8 3 2011

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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