Williams, E.Casperson, R. J.Werner, V.Ai, H.Boutacnkov, R.Chamberlain, M.Gürdal, G.Heinz, A.McCutchan, E. A.Qian, J.Winkler, R.2026-07-032026-07-030094-243XORCID:/0000-0002-7895-458X/work/219172540https://hdl.handle.net/1885/733812403Multipole mixing ratios for transitions between excited 2+ states and the 21+ state in 140Nd are measured using angular correlation techniques for beta decay reactions. Two transitions with dominant Ml components are identified, and the higher-lying 2+ states involved in these transitions are presented as candidates for the one-phonon mixed-symmetric 2+ state in 140Nd. Assuming pure two-state mixing between the one-phonon 2+ state and a presumed three-phonon symmetric state yields a mixing matrix element between these states, which is discussed in terms of shell effects on mixed-symmetric behavior in the N = 80 isotones.5enAngular correlationsCollective modelsMixed symmetry states200910.1063/1.308702564949090979