Transition rates of high spin bands in $^{136}$Nd

ORAL

Abstract

Electromagnetic transition probabilities have been measured for the transitions in the two multi-quasiparticle rotational bands in the nucleus $^{136}$Nd. Lifetimes were obtained in a DSAM measurement at Gammasphere, using the $^{100}$Mo($^{40}$Ar, 4n)$^{136}$Nd reaction. The measurements are compared with new results of TAC and RPA calculations. The bands are identified as being built on two different quasiparticle configurations, with very different transition rates. These results contradict the speculation of a chiral-band pair [1] in this even-even nucleus. [1] E. Mergel \textit{et al.}, Eur. Phys. J. A \textbf{15}, 417 (2002).

*Supported in part by the U. S. National Science Foundation, the Department of Science and Technology, Government of India, and the U. S. Department of Energy, Office of Nuclear Physics.

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Authors

  • S. Mukhopadhyay

    • University of Notre Dame, IN, USA; UGC-DAE CSR, Kolkata Centre, India

  • D. Almehed

    • University of Notre Dame, IN, USA

  • U. Garg

    • University of Notre Dame, IN, USA

  • S. Frauendorf

    • University of Notre Dame, IN, USA

  • T. Li

    • University of Notre Dame, IN, USA

  • P. V. Madhusudhana Rao

    • University of Notre Dame, IN, USA

  • X. Wang

    • University of Notre Dame, IN, USA

  • S.S. Ghugre

    • UGC-DAE CSR, Kolkata Centre, India

  • M.P. Carpenter

    • Argonne National Laboratory, Argonne, IL, USA

  • S. Gros

    • Argonne National Laboratory, Argonne, IL, USA

  • A. Hecht

    • Argonne National Laboratory, Argonne, IL, USA

  • R.V.F. Janssens

    • Argonne National Laboratory, Argonne, IL, USA

  • F.G. Kondev

    • Argonne National Laboratory, Argonne, IL, USA

  • T. Lauritsen

    • Argonne National Laboratory, Argonne, IL, USA

  • D. Seweryniak

    • Argonne National Laboratory, Argonne, IL, USA

  • S. Zhu

    • Argonne National Laboratory, Argonne, IL, USA