Soft Dipole Resonance in the Neutron-Skin Nucleus H6e

S. Nakayama, T. Yamagata, H. Akimune, I. Daito, H. Fujimura, Y. Fujita, M. Fujiwara, K. Fushimi, T. Inomata, H. Kohri, N. Koori, K. Takahisa, A. Tamii, M. Tanaka, and H. Toyokawa
Phys. Rev. Lett. 85, 262 – Published 10 July 2000
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A candidate for a soft dipole resonance, a dipole oscillation mode between a core cluster and a neutron skin, was observed at Ex=4±1MeV and with a width of 4±1MeV in 6He via the 6Li(7Li,7Be) reaction at an incident energy of 65AMeV and forward scattering angles including 0°. Its cross section is deduced to be σ(0°)=0.9±0.2mb/sr. This value is comparable to that of the giant dipole resonance simultaneously measured.

  • Received 30 November 1999


©2000 American Physical Society

Authors & Affiliations

S. Nakayama1,*, T. Yamagata2, H. Akimune2, I. Daito3, H. Fujimura3, Y. Fujita4, M. Fujiwara3,5, K. Fushimi1, T. Inomata3, H. Kohri4, N. Koori1, K. Takahisa3, A. Tamii6, M. Tanaka7, and H. Toyokawa8

  • 1Department of Physics, University of Tokushima, Tokushima 770-8502, Japan
  • 2Department of Physics, Konan University, Kobe 658-8501, Japan
  • 3Research Center for Nuclear Physics, Osaka University, Osaka 567-0047, Japan
  • 4Department of Physics, Osaka University, Osaka 560-0043, Japan
  • 5Advanced Science Research Center, JAERI, Tokai, Ibaraki 319-1195, Japan
  • 6Department of Physics, University of Tokyo, Tokyo 113-0033, Japan
  • 7Kobe Tokiwa Junior College, Kobe 653-0838, Japan
  • 8SPring-8, Hyogo 678-12, Japan

  • *Electronic address:

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Vol. 85, Iss. 2 — 10 July 2000

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This collection marks the 30th anniversary of the discovery of high-temperature superconductors. The papers selected highlight some of the advances that have been made to date, both in understanding why these compounds behave in the way they do, and in utilizing them in applications. The papers included in the collection have been made free to read.

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