Symmetries in mirror nuclei 31S and 31P
- Tonev D.
- de Angelis G.
- Goutev N.
- Iliev S.
- Orlandi R.
- Deloncle I.
- Demerdjiev A.
- Gadea A.
- Geleva E.
- He C.
- Laftchiev H.
- Lunardi S.
- Marginean N.
- Nikolov A.
- Pavlov P.
- Pantaleev I.L.
- Penttilä H.
- Recchia F.
- Sahin E.
- Singh R.P.
- Slavchev B.
- Wirth H.–F.
- Yavahchova M.S.
Publication date
January 2018
DOI Publisher
EDP Sciences Journal
EPJ Web of ConferencesAbstract
Excited states in mirror nuclei 31S and 31P were populated in the 1n and 1p exit channels, respectively, of the reaction 20Ne + 12C. The beam of 20Ne, with an energy of 33 MeV, was delivered for the first time by the Piave-Alpi accelerator of the Laboratori Nazionali di Legnaro. Angular correlations of coincident pairs and Doppler-shift attenuation lifetime measurements in 31S and 31P were performed using the multidetector array GASP in conjunction with the EUCLIDES charged particle detector. A comparison of the determined B(E1) strengths of the analog mirror 7/2- → 5/2+ transitions indicates the presence of a violation of isospin symmetry
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