Complete Electric Dipole Response and the Neutron Skin in 208Pb

被引：450

作者：

Tamii, A. ^{[1
]}

Poltoratska, I. ^{[2
]}

von Neumann-Cosel, P. ^{[2
]}

Fujita, Y. ^{[3
]}

Adachi, T. ^{[3
,4
]}

Bertulani, C. A. ^{[5
]}

Carter, J. ^{[6
]}

Dozono, M. ^{[7
]}

Fujita, H. ^{[1
]}

Fujita, K. ^{[7
]}

Hatanaka, K. ^{[1
]}

Ishikawa, D. ^{[1
]}

Itoh, M. ^{[8
]}

Kawabata, T. ^{[9
]}

Kalmykov, Y. ^{[2
]}

Krumbholz, A. M. ^{[2
]}

Litvinova, E. ^{[10
,11
]}

Matsubara, H. ^{[12
]}

Nakanishi, K. ^{[12
]}

Neveling, R. ^{[13
]}

Okamura, H. ^{[1
]}

Ong, H. J. ^{[1
]}

Oezel-Tashenov, B. ^{[10
]}

Ponomarev, V. Yu. ^{[2
]}

Richter, A. ^{[2
,14
]}

Rubio, B. ^{[15
]}

Sakaguchi, H. ^{[1
]}

Sakemi, Y. ^{[8
]}

Sasamoto, Y. ^{[12
]}

Shimbara, Y. ^{[3
,16
]}

Shimizu, Y. ^{[17
]}

Smit, F. D. ^{[13
]}

Suzuki, T. ^{[1
]}

Tameshige, Y. ^{[18
]}

Wambach, J. ^{[2
]}

Yamada, R. ^{[16
]}

Yosoi, M. ^{[1
]}

Zenihiro, J. ^{[1
]}

机构：

[1] Osaka Univ, Nucl Phys Res Ctr, Osaka 5670047, Japan

[2] Tech Univ Darmstadt, Inst Kernphys, D-64289 Darmstadt, Germany

[3] Osaka Univ, Dept Phys, Osaka 5600043, Japan

[4] Univ Groningen, Kernfys Versneller Inst, NL-9747 AA Groningen, Netherlands

[5] Texas A&M Univ, Dept Phys & Astron, Commerce, TX 75429 USA

[6] Univ Witwatersrand, Sch Phys, ZA-2050 Johannesburg, South Africa

[7] Kyushu Univ, Dept Phys, Fukuoka 8128581, Japan

[8] Tohoku Univ, Ctr Cyclotron & Radioisotope, Sendai, Miyagi 9808578, Japan

[9] Kyoto Univ, Dept Phys, Kyoto 6068502, Japan

[10] GSI Helmholtzzentrum Schwerionenforsch, D-64291 Darmstadt, Germany

[11] Goethe Univ Frankfurt, Inst Theoret Phys, D-60438 Frankfurt, Germany

[12] Univ Tokyo, Ctr Nucl Study, Bunkyo Ku, Tokyo 1130033, Japan

[13] iThemba LABS, ZA-7129 Somerset W, South Africa

[14] ECT, I-38123 Villazzano, Trento, Italy

[15] Univ Valencia, CSIC, Inst Fis Corpuscular, E-46071 Valencia, Spain

[16] Niigata Univ, Dept Phys, Niigata 9502102, Japan

[17] RIKEN Nishina Ctr, Wako, Saitama 3510198, Japan

[18] Natl Inst Radiol Sci, Chiba 2638555, Japan

来源：

PHYSICAL REVIEW LETTERS | 2011年 / 107卷 / 06期

关键词：

POLARIZATION TRANSFER; NUCLEI; EXCITATIONS; SCATTERING; RESONANCE; MODES;

D O I：

10.1103/PhysRevLett.107.062502

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A benchmark experiment on Pb-208 shows that polarized proton inelastic scattering at very forward angles including 0 degrees 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)(+0.025) fm in Pb-208 derived within a mean-field model [Phys. Rev. C 81, 051303 (2010)], thereby constraining the symmetry energy and its density dependence relevant to the description of neutron stars.

引用

页数：5

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