Sub-nanosecond lifetimes in Te

The half-lives of the 1776.8 keV 6⁺ level and the 2497.3 keV 7^? level in ¹²⁶Te are measured by registering β-γ coincidences in the decay of ¹²⁶Sb. The results are $\text{T}{}_{\mathrm{<mtext>1</mtext><mtext>2</mtext><mtext>(1776.8)\; =\; 66\pm 3</mtext><mtext>ps</mtext>}}$ and $\text{T}{}_{\mathrm{<mtext>1</mtext><mtext>2</mtext><mtext>(2497.3)\; =\; 152\pm 5\; </mtext><mtext>ps</mtext>}}$. The collective strength of the 6⁺ → 4⁺ transition depopulating the 1776.8 keV state is estimated. An additional half-life of 0.36±0.06 ns is found but not definitely assigned in the level scheme.