Investigating nuclear structure relevant to neutrinoless double $\beta $ decay: $^{76}$Ge and $^{76}$Se
ORAL
Abstract
Disagreements between theoretical predictions of matrix elements relevant to neutrinoless double beta decay motivated measurements of valence occupations in the ground states of $^{76}$Ge and $^{76}$Se. Results from neutron transfer reactions indicate that the Fermi surface is much more diffuse than theoretical calculations suggest$^{a}$. Recently, similar measurements have been carried out to determine the difference in proton occupations of these nuclei. This program of work is complemented by results probing pair correlations in these nuclei, obtained using the (p,t) reaction$^{b}$. $^{a}$J.P. Schiffer \textit{et al. }Phys. Rev. Lett. \textbf{100}, 112501 (2008) $^{b}$S.J. Freeman \textit{et al.} Phys. Rev. C \textbf{75}, 051301(R) (2007)
*This work is supported by the UK STFC, the US Department of Energy, Office of Nuclear Physics, under Contract Nos. DE-FG02-91ER-40609 and DE-AC02-06CH11357, the IN2P3/CNRS-France and the German BMBF.
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