2026-06-08T12:24:54Zhttps://docta.ucm.es/rest/oai/requestoai:docta.ucm.es:20.500.14352/138032023-08-25T21:00:27Zcom_20.500.14352_14col_20.500.14352_15
Docta Complutense
author
Fraile Prieto, Luis Mario
author
otros, ...
2023-06-17T13:35:08Z
2023-06-17T13:35:08Z
2019-08
1434-6001
10.1140/epja/i2019-12815-2
https://hdl.handle.net/20.500.14352/13803
http://dx.doi.org/10.1140/epja/i2019-12815-2
https://link.springer.com/
The neutron-deficient mercury isotopes serve as a classical example of shape coexistence, whereby at low energy near-degenerate nuclear states characterized by different shapes appear. The electromagnetic structure of even-mass 182-188 Hg isotopes was studied using safe-energy Coulomb excitation of neutron-deficient mercury beams delivered by the REX-ISOLDE facility at CERN. The population of 0 + 1,2, 2(1,2)(+) and 4(1)(+) states was observed in all nuclei under study. Reduced E2 matrix elements coupling populated yrast and non-yrast states were extracted, including their relative signs. These are a sensitive probe of shape coexistence and may be used to validate nuclear models. The experimental results are discussed in terms of mixing of two different configurations and are compared with three different model calculations: the Beyond Mean Field model, the Interacting Boson Model with configuration mixing and the General Bohr Hamiltonian. Partial agreement with experiment was observed, hinting to missing ingredients in the theoretical descriptions.
eng
Atribución 3.0 España
Electromagnetic properties of low-lying states in neutron-deficient Hg isotopes: Coulomb excitation of Hg-182, Hg-184, Hg-186 and Hg-188
journal article
URL
https://docta.ucm.es/bitstreams/88441f59-7a63-417e-bb2e-f4b491108f0c/download
File
MD5
a073de2f8de320ffb83ff4d707c971f0
832196
application/pdf
FrailePrieto53libre+CC.pdf