Čolović, Petra; Szilner, Suzana; Corradi, L.; Mijatović, Tea; Pollarolo, G.; Goasduff, A.; Montanari, D.; Chapman, R.; Fioretto, E.; Gadea, A.; Haas, F.; Jelavić Malenica, Desa; Marginean, N.; Mengoni, D.; Milin, Matko; Montagnoli, G.; Scarlassara, F.; Smith, J.F.; Soić, Neven; Stefanini, A.M.; Ur, C.A.; Valiente-Dobon, J.J.
(2017)
Stretched configuration of states as inferred from γ-ray angular distributions in 40Ar + 208Pb neutron transfer reactions.
European Physical Journal A: Hadrons and Nuclei, 53
(8).
ISSN 1434-6001
Abstract
Angular distributions of γ-rays for selected transitions in 40, 41, 42Ar isotopes have been studied with the PRISMA magnetic spectrometer coupled to the CLARA γ array. These transitions were populated in Ar isotopes reached via neutron transfer in the 40Ar + 208Pb reaction. By comparison with the shape of the experimental angular distribution of the known E2 transitions we established more firmly the spin and parity of excited states. In particular, in 41Ar for the (11/2-) state through the (11/2-) -> 7/2- transition whose structure was discussed in terms of a phonon-fermion coupled state. The comparison with the expected fully aligned spin indicated that a high level of spin alignment has been reached.
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