https://doi.org/10.1140/epjad/i2005-06-094-0
ENAM 2004
Reduced transition probabilities for the first 2+ excited state in 46Cr, 50Fe, and 54Ni
1
RIKEN, 2-1 Hirosawa, 351-0198, Wako, Saitama, Japan
2
Center for Nuclear Study (CNS), University of Tokyo, RIKEN Campus, 2-1 Hirosawa, 351-0198, Wako, Saitama, Japan
3
Department of Physics, Rikkyo University, 3-34-1 Nishi-Ikebukuro, 171-8501, Toshima, Tokyo, Japan
4
Institute of Nuclear Research of the Hungarian Academy of Sciences, P.O. Box 51, H-4001, Debrecen, Hungary
5
Institut de Physique Nucléare, F-91406, Orsay Cedex, France
6
Department of Physics, University of Tokyo, 7-3-1 Hongo, 113-0033, Bunkyo, Tokyo, Japan
7
High Energy Accelerator Research Organization, 1-1 Oho, 305-0801, Tsukuba, Ibaraki, Japan
8
Argonne National Laboratory, 9700 S. Cass Avenue, 60439, Argonne, IL, USA
9
Department of Physics, Kyoto University, Kita-Shirakawa-Oiwake, 606-8502, Sakyo, Kyoto, Japan
10
Department of Physics, University of Tsukuba, 1-1-1 Tennoudai, 305-8577, Tsukuba, Ibaraki, Japan
11
National Superconducting Cyclotron Laboratory, Michigan State University, 48824-1321, East Lansing, MI, USA
* e-mail: nari-yamada@riken.jp
Received:
22
December
2004
Accepted:
1
March
2005
Published online:
27
May
2005
We measured B(E2;0+ g.s. → 2+ 1) values for the proton-rich 46Cr, 50Fe, and 54Ni nuclides by intermediate-energy Coulomb excitation in order to study the systematic behavior of collectivity in the Z = 20-28 region. The present study completes the B(E2) values for the T z = ±1 even-even pair nuclei up to Z = 28. The double ratios of proton and neutron matrix elements, (| M n|/| M p|)/(N/Z), have been extracted from the B(E2) values combining with the ones of their mirror nuclei, and compared with theoretical predictions.
PACS: 25.70.De Coulomb excitation – / 23.20.Lv γ transitions and level energies –
© Società Italiana di Fisica and Springer-Verlag, 2005