Phys. Rev. C 64, 044303 (2001) [11 pages]Spectroscopy near the proton drip line in the deformed A=130 mass region: The 126Pr nucleusReceived 21 May 2001; published 19 September 2001 The near proton drip-line nucleus 126Pr was studied via in-beam γ-ray spectroscopy using the 40Ca+92Mo reaction at 190 MeV. We observed for the first time excited states above the known isomer in this nucleus, up to spin 31ħ. The observed band is assigned to a πh11/2⊗νh11/2 configuration and is discussed in the framework of the interacting boson-fermion-fermion model. The calculations and the experimental information suggest a spin 8+ for the lowest observed state. With such a spin assignment the moment of inertia of 126Pr gets larger than in the heavier Pr isotopes, suggesting a sudden change in deformation close to the proton drip line. © 2001 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevC.64.044303
DOI:
10.1103/PhysRevC.64.044303
PACS:
21.10.Re, 21.60.Cs, 27.60.+j
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