Li$_{2}$MoO$_{4}$ for 0$\nu\beta\beta$ decay search in CUIPD - The Physics case and current status

$^{100}$Mo deployed in the form of enriched Li$_{2}$MoO$_{4}$ crystals can be used as promising scintillating bolometers to search for 0$\nu\beta\beta$ in a ton-scale experiment. In this talk we will review the properties of this target crystal and achieved bolometric performance. We will also discuss its role as baseline choice for CUPID (CUORE Upgrade with Particle ID) and how it can benefit from ongoing CUPID sensor R\&D. Successful bolometric tests of enriched Li$_{2}$MoO$_{4}$ crystals showed excellent performance of $\sim$5-6 keV energy resolution (FWHM) at 2615 keV and $\sim$9 sigma alpha to beta/gamma separation at nearly full signal efficiency. Twenty enriched 0.2 kg detectors have recently been deployed in the CUPID-Mo experiment in Modane. A CUORE based analysis framework has been setup and data from its validation will be presented. With regular data taking scheduled to start in summer 2018 we expect to achieve a sensitivity on the  0$\nu\beta\beta$ half life of larger than 10$^{24}$ yr after half a year of data taking. This talk will also report on these ongoing activities.