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Transition from direct to sequential two-proton decay in s–d shell nuclei

Golubkova, T.A. ; Xu, X.-D. ; Grigorenko, L.V. ; Mukha, I.G. ; Scheidenberger, C. ; Zhukov, M.V.

Physics letters. B, 2016-11, Vol.762, p.263-270 [Periódico revisado por pares]

Elsevier B.V

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Título:
Transition from direct to sequential two-proton decay in s–d shell nuclei
Autor: Golubkova, T.A. ; Xu, X.-D. ; Grigorenko, L.V. ; Mukha, I.G. ; Scheidenberger, C. ; Zhukov, M.V.
Assuntos: Dripline s–d shell nuclei ; One-proton ; One-proton, two-proton decay ; Transitions between different modes of two-proton emission ; two-proton decay ; Two-proton decays of 15Ne and 30Ar ; Two-proton emission mechanisms
É parte de: Physics letters. B, 2016-11, Vol.762, p.263-270
Descrição: The transition between different mechanisms of two-proton decay in exotic nuclei and the governing physical conditions are generally studied. To perform this large-scale survey, the direct-decay model, which is widely used, was improved by generalizing the semi-analytical approaches used before. The improved model provides a flawless phenomenological description of three-body correlations in 2p decays, as is demonstrated by several examples of decays of low-lying states in 16Ne. Different transition mechanisms are shown to occur beyond the proton dripline for s–d shell nuclei. It is found that the transition dynamics of 2p-emitters allows the extraction of the width of the ground-state resonance of the core+p subsystem. The practical application of the method is illustrated by determining properties of the 14F ground state derived from the Ne15→O13+2p decay data, and of the 29Cl ground state derived from the Ar30→S28+2p decay data.
Editor: Elsevier B.V
Idioma: Inglês

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Transition from direct to sequential two-proton decay in s–d shell nuclei

Golubkova, T.A. ; Xu, X.-D. ; Grigorenko, L.V. ; Mukha, I.G. ; Scheidenberger, C. ; Zhukov, M.V.

Elsevier B.V

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