Unveiling the Intruder Deformed 0(2)(+) State in Si-34

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389005%3A_____%2F12%3A00384327" target="_blank" >RIV/61389005:_____/12:00384327 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1103/PhysRevLett.109.092503" target="_blank" >http://dx.doi.org/10.1103/PhysRevLett.109.092503</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1103/PhysRevLett.109.092503" target="_blank" >10.1103/PhysRevLett.109.092503</a>

Result language
angličtina
Original language name
Unveiling the Intruder Deformed 0(2)(+) State in Si-34
Original language description
The 0(2)(+) state in Si-34 has been populated at the GANIL-LISE3 facility through the beta decay of a newly discovered 1(+) isomer in Al-34 of 26(1) ms half-life. The simultaneous detection of e(+)e(-) pairs allowed the determination of the excitation energy E(0(2)(+)) = 2719(3) keV and the half-life T-1/2 = 19.4(7) ns, from which an electric monopole strength of rho(2)(E0) = 13.0(0.9) x 10(-3) was deduced. The 2(1)(+) state is observed to decay both to the 0(1)(+) ground state and to the newly observed0(2)(+) state [via a 607(2) keV transition] with a ratio R(2(1)(+)) -> 0(1)(+)/2(1)(+) -> 0(2)(+)) = 1380(717). Gathering all information, a weak mixing with the 0(1)(+) and a large deformation parameter of beta = 0.29(4) are found for the 0(2)(+) state, in good agreement with shell model calculations using a new SDPF-U-MIX interaction allowing np-nh excitations across the N = 20 shell gap.
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
BG - Nuclear, atomic and molecular physics, accelerators
OECD FORD branch
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Project
<a href="/en/project/GA202%2F04%2F0791" target="_blank" >GA202/04/0791: Study of the structure and properties of neutron-rich isotopes at the border of stability using radioactive nuclear beams</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2012
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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