Evidence for a Smooth Onset of Deformation in the Neutron-Rich Kr Isotopes

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RESEARCH PRODUCT

Evidence for a Smooth Onset of Deformation in the Neutron-Rich Kr Isotopes

C. Bernards Jan Diriken M. Pfeiffer K. Moschner P. Reiter M. Rudigier H. De Witte Jonathan Butterworth J. M. Daugas D. Voulot Iain Darby Mark Huyse Takaharu Otsuka R. R. Rodríguez-guzmán Liam Gaffney R. Gernhäuser P. Van Duppen R. Krücken Fredrik Wenander Vinzenz Bildstein N. Warr M. Zielinska D. Mücher T. Kröll B. S. Nara Singh C. Mihai M. Seidlitz Joakim Cederkäll Georgi P. Georgiev B. Bastin P. Thöle D. Radeck Susan Rigby S. Das Gupta D. G. Jenkins M. Albers C. Fransen J. Van De Walle R. Wadsworth Pedro Sarriguren T. Thomas B. Siebeck J. Jolie Marcus Scheck N. Marginean M. Hackstein D. M. Filipescu L. Bettermann Janne Pakarinen Thomas Davinson G. S. Simpson P. J. Napiorkowski E. Fiori A. Blazhev K. Nowak L. M. Robledo Joonas Konki M. Kowalczyk R. Lutter Herbert Hess K. O. Zell Kathrin Wimmer Kosuke Nomura M. Vermeulen M. Cappellazzo Stefan Heinze J. Litzinger D. Cline C. Bauer

subject

Quantum phase transition [PHYS.NUCL]Physics [physics]/Nuclear Theory [nucl-th]REX-ISOLDE Nuclear Theory QUANTUM PHASE-TRANSITIONS General Physics and Astronomy chemistry.chemical_element Context (language use)Coulomb excitation Nuclear Structure 01 natural sciences REGION Nuclear physics 0103 physical sciences Nuclear Physics - Experiment Neutron 010306 general physics Nuclear Experiment DETECTOR INTERACTING BOSONS Physics EXCITATIONS COLLECTIVE NUCLEAR-STATES ta114 010308 nuclear & particles physics Krypton Física chemistry Excited state SHELL-MODEL Interacting boson model Atomic physics Ground state

description

The neutron-rich nuclei Kr94,96 were studied via projectile Coulomb excitation at the REX-ISOLDE facility at CERN. Level energies of the first excited 2 + states and their absolute E2 transition strengths to the ground state are determined and discussed in the context of the E(21+) and B(E2;21+â†’01+) systematics of the krypton chain. Contrary to previously published results no sudden onset of deformation is observed. This experimental result is supported by a new proton-neutron interacting boson model calculation based on the constrained Hartree-Fock-Bogoliubov approach using the microscopic Gogny-D1M energy density functional. © 2012 American Physical Society.

year	journal	country	edition	language
2012-02-10	Physical Review Letters

10.1103/physrevlett.108.062701 https://research.rug.nl/en/publications/c8fc3362-008a-46d2-8d8d-e26182e687d2