In-beam γ-spectroscopy with relativistic radioactive ion beams

S. Wan, J. Gerl, J. Cub, J. M. Holeczek, P. Reiter, D. Schwalm, T. Aumann, K. Boretzky, W. Dostal, B. Eberlein, H. Emling, Ch Ender, Th W. Elze, H. Geissel, A. Grünschloß, R. Holzmann, N. Iwasa, M. Kaspar, A. Kleinböhl, O. KoschorrekY. Leifels, A. Leistenschneider, I. Peter, H. Schaffner, C. Scheidenberger, R. Schubart, R. Schubert, H. Simon, G. Stengel, A. Surowiec, H. J. Wollersheim

研究成果: Article査読

21 被引用数 (Scopus)

抄録

This work demonstrates the feasibility of in-beam γ-spectroscopy employing radioactive ion beam species at relativistic energies of E = 210 ∼ 280 A·MeV. Neutron-rich nuclei below 48Ca with neutron number between the two magic numbers 20 and 28 have been investigated. Using a Pb target, single step inelastic excitation originating mainly from Coulomb interaction takes place populating preferentially low-lying low-spin states and enabling the extraction of B(E2) values. On a C target, nucleon removal reactions are dominating and medium-spin states are populated thus offering spectroscopic information in neighboring nuclei. Cross sections of inelastic excitation are determined and compared to coupled-channels calculations. Two new states of the very neutron-rich nucleus 44Ar at 1.78(8) MeV and 2.61(16) MeV are deduced from γ-transitions.

本文言語English
ページ(範囲)167-174
ページ数8
ジャーナルEuropean Physical Journal A
6
2
DOI
出版ステータスPublished - 1999
外部発表はい

ASJC Scopus subject areas

  • 核物理学および高エネルギー物理学

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