208Pb 中的完全电偶极响应与中子皮
核实验
2011-08-22 v2 核理论
摘要
一项针对 208Pb 的基准实验表明，在包括 0° 在内的极前向角上的极化质子非弹性散射，是一种在宽广激发能区对原子核中的电偶极（E1）和自旋磁偶极（M1）模式进行高分辨率研究的有力工具，可用于检验最新的核模型。提取的 E1 极化率在平均场模型 [Phys. Rev. C 81, 051303 (2010)] 内导出 208Pb 的中子皮厚度 r_skin = 0.156+0.025-0.021 fm，从而约束了与中子星描述相关的对称能及其密度依赖性。
引用
@article{arxiv.1104.5431,
title = {Complete electric dipole response and the neutron skin in 208Pb},
author = {A. Tamii and I. Poltoratska and P. von Neumann-Cosel and Y. Fujita and T. Adachi and C. A. Bertulani and J. Carter and M. Dozono and H. Fujita and K. Fujita and K. Hatanaka and A. M. Heilmann and D. Ishikawa and M. Itoh and H. J. Ong and T. Kawabata and Y. Kalmykov and E. Litvinova and H. Matsubara and K. Nakanishi and R. Neveling and H. Okamura and B. Özel-Tashenov and V. Yu. Ponomarev and A. Richter and B. Rubio and H. Sakaguchi and Y. Sakemi and Y. Sasamoto and Y. Shimbara and Y. Shimizu and F. D. Smit and T. Suzuki and Y. Tameshige and J. Wambach and R. Yamada and M. Yosoi and J. Zenihiro},
journal= {arXiv preprint arXiv:1104.5431},
year = {2011}
}
备注
5 pages, 5 figures, revised mansucript