RT Journal Article
T1 Normal and intruder configurations in Si- 34 populated in the β(-) decay of Mg-34 and Al-34
A1 Fraile Prieto, Luis Mario
A1 otros, ...
AB The structure of Si-34 was studied through gamma spectroscopy separately in the beta(-) decays of Mg-34 and Al-34 at the ISOLDE facility of CERN. Different configurations in Si-34 were populated independently from the two recently identified beta-decaying states in Al-34 having spin-parity assignments J(pi) = 4(-) dominated by the normal configuration pi(d(5/2))(-1) circle times nu(f(7/2)) and J(pi) = 1(+) by the intruder configuration pi(d(5/2))(-1) circle times nu(d(3/2))(-1) (f(7/2))(2). The paper reports on spectroscopic properties of Si-34 such as an extended level scheme, spin and parity assignments based on log(ft) values and gamma-ray branching ratios, absolute beta feeding intensities, and neutron emission probabilities. A total of 11 newly identified levels and 26 transitions were added to the previously known level scheme of Si-34. Large scale shell-model calculations using the SDPF-U-MIX interaction, able to treat higher order intruder configurations, are compared with the new results and conclusions are drawn concerning the predictive power of SDPF-U-MIX, the N = 20 shell gap, the level of mixing between normal and intruder configurations for the 0(1)(+), 0(2)(+), and 2(1)(+) states, and the absence of triaxial deformation in Si-3(4).
PB American Physical Society
SN 2469-9985
YR 2019
FD 2019-09-11
LK https://hdl.handle.net/20.500.14352/13812
UL https://hdl.handle.net/20.500.14352/13812
LA eng
NO Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Artículo firmado por 56 autores. This work was partially supported by a grant of the Romanian National Authority for Scientific Research and Innovation, CNCS-UEFISCDI project number PN-II-RU-TE-2014-4-1455, by the Romanian IFA Grant CERN/ISOLDE, by Research Foundation Flanders (FWO-Belgium), by GOA/2015/010 (BOF KU Leuven), and by the Interuniversity Attraction Poles Programme initiated by the Belgian Science Policy Office (BriX network P7/12). Support from the U. K. Science and Technology Facilities Council, the European Union Seventh Framework through ENSAR (Contract No. 262010), the MINECO (Spain) grants FPA2017-87568-P, FPA2015-64969-P, FPA2014-57196, FPA2015-65035-P, Programme "Centros de Excelencia Severo Ochoa" SEV-20160597, the MEYS project SPIRAL2-CZ, EF16-013/0001679, the National Research, Development and Innovation Fund of Hungary via Project No. K128947, the European Regional Development Fund (Contract No. GINOP-2.3.3-15-201600034), the German BMBF under contract 05P18PKCIA (ISOLDE), and " Verbundprojekt 05P2018" is also acknowledged. I. K. was supported by the National Research, Development and Innovation Office of Hungary (NKFIH), Contract No. PD 124717.
NO Unión Europea. FP7
NO Ministerio de Economía y Competitividad (MINECO)
NO Centro de Excelencia Severo Ochoa
NO Fondo Europeo de Desarrollo Regional (FEDER)
NO Romanian National Authority for Scientific Research and Innovation, CNCS-UEFISCDI project
NO Romanian IFA Grant CERN/ISOLDE
NO Research Foundation Flanders (FWO-Belgium)
NO BOF KU LeuvenKU Leuven
NO Interuniversity Attraction Poles Programme by the Belgian Science Policy Office (BriX network P7/12)
NO U. K. Science and Technology Facilities Council (STFC)
NO MEYS project SPIRAL2-CZ
NO National Research, Development and Innovation Fund of Hungary
NO German BMBF Federal Ministry of Education & Research
NO Verbundprojekt
NO National Research, Development and Innovation Office of Hungary (NKFIH)
DS Docta Complutense
RD 8 abr 2025