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Communication Dans Un Congrès Année : 2020

Collectivity of the electromagnetic transitions in near-threshold resonances

Résumé

Mixing of the shell model (SM) eigenstates due to the coupling via the common decay channel influences leads in many cases to the formation of a collective eigenstate which carries many features of the nearby decay channel. This generic mechanism in open quantum systems explains the phenomenological Ikeda diagram and generalizes it for various clusters/correlations in the vicinity of the respective cluster decay thresholds. The near-threshold collectivization of the SM states may also influence their electromagnetic decays. We discuss this phenomenon on the example of B(Eλ) decays of near-threshold 2+ states in 14C.

Dates et versions

hal-02327779 , version 1 (23-10-2019)

Identifiants

Citer

M. Płoszajczak, J. Okołowicz. Collectivity of the electromagnetic transitions in near-threshold resonances. 27th International Nuclear Physics Conference, Jul 2019, Glasgow, United Kingdom. pp.012156, ⟨10.1088/1742-6596/1643/1/012156⟩. ⟨hal-02327779⟩
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