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Evolution from spherical single-particle structure to stable triaxiality at high spins in Nd140

  • Author(s): Petrache, CM
  • Fantuzi, M
  • Lobianco, G
  • Mengoni, D
  • Neusser-Neffgen, A
  • Hübel, H
  • Al-Khatib, A
  • Bringel, P
  • Bürger, A
  • Nenoff, N
  • Schönwasser, G
  • Singh, AK
  • Ragnarsson, I
  • Hagemann, GB
  • Herskind, B
  • Jensen, DR
  • Sletten, G
  • Fallon, P
  • Görgen, A
  • Bednarczyk, P
  • Curien, D
  • Gangopadhyay, G
  • Korichi, A
  • Lopez-Martens, A
  • Rao, BVT
  • Reddy, TS
  • Singh, N
  • et al.
Abstract

The level structure of 60140Nd80 has been established up to spin 48 by in-beam γ-ray spectroscopy by use of the Zr96(Ca48, 4n) reaction. High-fold γ-ray coincidences were measured with the EUROBALL spectrometer. Twelve new rotational bands have been discovered at high spins. They are interpreted as being formed in a deep triaxial minimum at 2 0.25 and γ 35°. Possible configurations are assigned to the observed bands on the basis of configuration-dependent cranked Nilsson-Strutinsky calculations. © 2005 The American Physical Society.

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