Phys.Rev. C 103, L041302 (2021)

G.Gosta, A.Mentana, F.Camera, A.Bracco, S.Ceruti, G.Benzoni, N.Blasi, S.Brambilla, S.Capra, F.C.L.Crespi, A.Giaz, S.Leoni, B.Million, S.Riboldi, C.Porzio, S.Ziliani, O.Wieland, A.Nannini, M.Rocchini, N.Marchini, M.Ciemala, M.Kmiecik, A.Maj, B.Wasilewska, M.Zieblinski, D.Filipescu, J.Kaur, N.Marginean, S.Pascu, T.Glodariu, D.Ghita, V.Zamfir, J.J.Valiente-Dobon, G.de Angelis, F.Galtarossa, A.Goasduff, T.Bayram, A.Gadea, A.Montaner, I.Zanon, D.Brugnara, A.Gozzelino, G.Pasqualato, R.Menegazzo, A.Gottardo, G.Jaworski, S.Lenzi, D.Napoli, D.Testov, M.Siciliano, T.Marchi, D.Mengoni, D.Bazzacco, A.Boso, P.R.John, F.Recchia, R.Raabe, O.Poleshchuk, J.Yang

Probing isospin mixing with the giant dipole resonance in the ⁶⁰Zn compound nucleus

NUCLEAR REACTIONS ³²Si(²⁸Si, X)⁶⁰Zn^*, E=86, 110 MeV; ³²Si(³⁰Si, X)⁶²Zn^*, E=75, 98 MeV; measured high-energy Eγ, Iγ using GALILEO array of 25 HPGe detectors and ten LaBr₃(Ce) scintillators at the Tandem accelerator facility of INFN-Legnaro. ^60,62Zn; deduced GDR parameters, Coulomb spreading widths, isospin mixing parameter at zero temperature and the isospin-symmetry-breaking correction for beta decay by analyzing experimental γ-spectra with statistical model calculations using a version of CASCADE code that included isospin formalism. Comparison of Coulomb spreading widths with the values for other mass regions deduced from GDR γ-decay measurements in other compound-nucleus reactions.

doi: 10.1103/PhysRevC.103.L041302