Elsevier

Physics Letters B

Volume 481, Issue 1, 18 May 2000, Pages 7-13
Physics Letters B

Quadrupole deformation of 12Be studied by proton inelastic scattering

https://doi.org/10.1016/S0370-2693(00)00428-7Get rights and content

Abstract

Inelastic proton scattering exciting the 2+1 states in the neutron-rich beryllium isotopes 10,12Be has been studied in inverse kinematics. From a coupled-channel analysis, the deformation lengths for the 2+1 states in 10Be and 12Be were determined to be 1.80±0.25 fm and 2.00±0.23 fm respectively, indicating that a tendency towards strong quadrupole deformation is preserved for these nuclei and that the singly-closed shell structure does not prevail in 12Be. A quantitative analysis based on shell model calculations supports this picture.

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Acknowledgements

We would like to thank the RIKEN Ring Cyclotron staff members for their operation during the experiment. We are grateful to Professor A. Gelberg for careful reading of the manuscript. The present work is supported in part by the Ministry of Education, Science, Sports and Culture by Grant-In-Aid for Scientific Research under the program number (B) 08454069.

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  • Cited by (0)

    1

    On leave from ATOMKI, Debrecen, Hungary.

    2

    Present address: Department of Science Education, Ewha Woman's University, Seoul 120-750, Korea.

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