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Critical-Point Boundary for the Nuclear Quantum Phase Transition Near A ¼ 100 from Mass Measurements of 96;97Kr

Abstract : Mass measurements of 96;97Kr using the ISOLTRAP Penning-trap spectrometer at CERN-ISOLDE are reported, extending the mass surface beyond N ¼ 60 for Z ¼ 36. These new results show behavior in sharp contrast to the heavier neighbors where a sudden and intense deformation is present. We interpret this as the establishment of a nuclear quantum phase transition critical-point boundary. The new masses confirm findings from nuclear mean-square charge-radius measurements up to N ¼ 60 but are at variance with conclusions from recent gamma-ray spectroscopy.
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http://hal.in2p3.fr/in2p3-00609661
Contributor : Christine Hadrossek <>
Submitted on : Tuesday, July 19, 2011 - 4:30:41 PM
Last modification on : Wednesday, September 16, 2020 - 4:07:27 PM

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S. Naimi, G. Audi, D. Beck, K. Blaum, Ch. Böhm, et al.. Critical-Point Boundary for the Nuclear Quantum Phase Transition Near A ¼ 100 from Mass Measurements of 96;97Kr. Physical Review Letters, American Physical Society, 2010, 105, pp.032502. ⟨10.1103/PhysRevLett.105.032502⟩. ⟨in2p3-00609661⟩

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