Coulomb excitation of ⁷⁸Kr

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• 作者：F. Becker ; A. Petrovici ; J. Iwanicki ; N. Amzal ; W. Korten ; K. Hauschild ; A. Hurstel ; Ch. Theisen ; P.A. Butler ; R.A. Cunningham et al.
• 刊名：Nuclear Physics A
• 出版年：2006
• 出版时间：15 May 2006
• 年：2006
• 卷：770
• 期：3-4
• 页码：107-125
• 全文大小：209 K

文摘

The Kr isotopes are considered to be among the best cases for shape coexistence studies in the mass me=""mml1"">method=retrieve&_udi=B6TVB-4JF8G24-1&_mathId=mml1&_user=10&_cdi=5530&_rdoc=2&_handle=V-WA-A-W-D-MsSAYWW-UUW-U-AACVZEWABU-AACWWDWEBU-EYUWDUWED-D-U&_acct=C000050221&_version=1&_userid=10&md5=2101c2e764d2d4cb3cef597a41d5418f"" title=""Click to view the MathML source"">A70 region. Our campaign to investigate in detail the development of the shape coexistence in the neutron deficient Kr isotopes was started with the stable nucleus ⁷⁸Kr. To obtain the information about the intrinsic shape, Coulomb excitation experiments were performed. A total of 26 matrix elements were determined for ⁷⁸Kr. Simple geometrical and algebraic models do not reproduce all details of the electromagnetic structure. A good interpretation of the complex structure of the nucleus with competing oblate and prolate shapes comes from a study within the complex EXCITED VAMPIR approximation using Hartree–Fock–Bogoliubov transformations with symmetry projection before variation. The measured matrix elements are compared with the predictions of this model.