Abstract
The low-energy βγ-decay from 11Li has recently been shown to be a sensitive tool for extracting information about halo wave functions [1]. Here we present a method for using the shape of Doppler-broadened γ-lines to extract information about excited states fed in β-decay [2]. The procedure has been used to extract new information about the β-decay of 11Li through the de-excitation of excited states in 10Be.
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