Low spin states of the nucleus (126) Xc were studied by means of gamma-spec
troscopy using the fusion evaporation reaction Te-123(alpha,n)Xe-126 perfor
med at the Cologne FN TANDEM accelerator. The gamma gamma coincidence and s
ingles spectra were measured with the OSIRIS-cube spectrometer. Beside the
ground and quasi-gamma bands many ther low lying states were observed. gamm
a gamma directional correlations from oriented states (DCO) were analyzed t
o determine the multipolarities of the gamma-transitions. We observed domin
ant E2-transitions in the quasi-gamma band and from the gamma- to the groun
d band but also a large M1-fraction in the 6(2)(+) -> 6(1)(+) transition. W
e additionally found a strong M1-decay depopulating the 2(4)(+)-state at 20
64 keV. The lifetime of this state was measured using the Doppler shift att
enuation technique. The experimental data are compared with a calculation u
sing the proton-Neutron Interacting Boson Model (IBM-2). Good agreement is
reached in the vicinity of the O(6)-limit. The observed M1-transition of th
e 2(4)(+) state is interpreted as due to a fragment of the lowest 2(+) mixe
d-symmetry state predicted by the IBM-2. (C) 2000 Elsevier Science B.V. All
rights reserved.