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.

Section snippets

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.

References (34)

  • T. Motobayashi

    Phys. Lett. B

    (1995)
  • N. Fukunishi et al.

    Phys. Lett. B

    (1992)
  • S. Raman

    At. Data Nucl. Data Tables

    (1987)
  • F. Ajzenberg-Selove

    Nucl. Phys. A

    (1988)
  • F. Ajzenberg-Selove

    Nucl. Phys. A

    (1990)
  • D.L. Auton

    Nucl. Phys. A

    (1970)
  • J.K. Jewell

    Phys. Lett. B

    (1999)
  • A.M. Bernstein et al.

    Phys. Lett. B

    (1981)
  • T. Kubo

    Nucl. Instrum. Methods B

    (1992)
  • R.L. Varner

    Phys. Rep.

    (1991)
  • M.D. Cortina-Gil

    Phys. Lett. B

    (1997)
  • M.N. Harakeh

    Nucl. Phys. A

    (1980)
  • R.J. Peterson

    Nucl. Phys. A

    (1982)
  • D.J. Millener et al.

    Nucl. Phys. A

    (1975)
  • I. Talmi et al.

    Phys. Rev. Lett.

    (1960)
  • N. Aoi

    Nucl. Phys. A

    (1997)
  • F.C. Barker

    J. Phys. G

    (1976)
  • Cited by (238)

    • Structural evolution and shape transition in even-even Hf-isotopes within the relativistic mean-field approach

      2022, Nuclear Physics A
      Citation Excerpt :

      The assembles fascinating features like neutron skin, halo phenomena, bubble structure, and the magicity of nuclei far from the β stability line are some of the essential properties for the nuclear structure study. Furthermore, the nuclear system near the drip line has a vital role in the field of both theoretical and experimental research [1–10]. For example, the change of shape from prolate to oblate and vice versa in the rare-earth region is a common phenomenon [11], which increases the stability of the nucleus.

    • Development of an intense <sup>10</sup>Be radioactive beam in ‘off-line mode’ at the Catania Tandem accelerator

      2020, Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
      Citation Excerpt :

      The availability of light radioactive ion beams (RIBs) allows performing a variety of studies in the field of nuclear structure e.g. [1,2], nuclear astrophysics e.g. [3] and reaction dynamics e.g. [4–6]. Radioactive ion beams can also be produced by projectile fragmentation e.g. [15–20] for the study of collisions at intermediate energies and by transfer reactions e.g. [21–24] for the study of collisions around the coulomb barrier. With these two techniques, the desired RIB produced in the primary reaction is selected by a suitable electromagnetic separator system and sent to the target with no post acceleration.

    • Shell evolution of N = 40 isotones towards <sup>60</sup>Ca: First spectroscopy of <sup>62</sup>Ti

      2020, Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
    View all citing articles on Scopus
    1

    On leave from ATOMKI, Debrecen, Hungary.

    2

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

    View full text