Isospin Mixing in Zr-80: From Finite to Zero Temperature
- Ceruti, S.
- Camera, F.
- Bracco, A.
- Avigo, R.
- Benzoni, G.
- Blasi, N.
- Bocchi, G.
- Bottoni, S.
- Brambilla, S.
- Crespi F. C., L.
- Giaz, A.
- Leoni, S.
- Mentana, A.
- Million, B.
- Morales A., I.
- Nicolini, R.
- Pellegri, L.
- Pullia, A.
- Riboldi, S.
- Wieland, O.
- Birkenbach, B.
- Bazzacco, D.
- Ciemala, M.
- Desesquelles, P.
- Eberth, J.
- Farnea, E.
- Goergen, A.
- Gottardo, A.
- Hess, H.
- Judson , D.S.
- Jungclaus, A.
- Kmiecik, M.
- Korten, W.
- Maj, A.
- Menegazzo, R.
- Mengoni, D.
- Michelagnoli, C.
- Modamio, V.
- Montanari, D.
- Myalski, S.
- Napoli, D.
- Quintana, B.
- Reiter, P.
- Recchia, F.
- Rosso, D.
- Sahin, E.
- Salsac, M.D.
- Soderstrom , P.A.
- Stezowski, O.
- Theisen, Ch.
- Ur, C.
- Valiente-Dobon J., J.
- Zieblinski, M.
Publication date
November 2015
DOI Publisher
American Physical Society (APS)Abstract
International audienceThe isospin mixing was deduced in the compound nucleus Zr-80 at an excitation energy of E* = 54 MeV from the gamma decay of the giant dipole resonance. The reaction Ca-40 + Ca-40 at E-beam = 136 MeV was used to form the compound nucleus in the isospin I = 0 channel, while the reaction Cl-37 + Ca-44 at E-beam = 95 MeV was used as the reference reaction. The. rays were detected with the AGATA demonstrator array coupled with LaBr3:Ce detectors. The temperature dependence of the isospin mixing was obtained and the zero-temperature value deduced. The isospin-symmetry-breaking correction delta(C) used for the Fermi superallowed transitions was extracted and found to be consistent with beta-decay data
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