Spectroscopy of At 201 including the observation of a shears band and the 29/2 + isomeric state
Auranen, K., Uusitalo, J., Juutinen, S., Jakobsson, U., Grahn, T., Greenlees, P., . . . Stolze, S. (2015). Spectroscopy of At 201 including the observation of a shears band and the 29/2 + isomeric state. Physical Review C, 91 (2), 024324 . doi:10.1103/PhysRevC.91.024324
Julkaistu sarjassaPhysical Review C
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The excited states of 201At were studied and an isomeric 29/2 + state [T1/2 = 3.39(9) μs] was identified by using a fusion-evaporation reaction, a gas-filled recoil separator, and recoil gating techniques. The 29/2 + state is suggested to originate from the π(h9/2) ⊗ |200Po;11− configuration, and it decays through the 269- and 339-keV E2- and E3-type transitions, respectively. Moreover, a cascade of magnetic dipole transitions that is suggested to originate from a shears band was observed by using recoil-gated γ − γ (−γ ) coincidence techniques.
JulkaisijaAmerican Physical Society
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