ABSTRACT The North American Nanohertz Observatory for Gravitational Waves (NANOGrav) recently reported evidence the presence of a common stochastic signal across their array pulsars. origin this is still unclear. One possibility that it due to gravitational-wave background (SGWB) in ?1–10 nHz frequency region. Taking NANOGrav observational result at face value, we show would be fully consistent...

In the global landscape of neutrinoless double beta ($0\nu\beta\beta$) decay search, use semiconductor germanium detectors provides many advantages. The excellent energy resolution, negligible intrinsic radioactive contamination, possibility enriching crystals up to 88% in $^{76}$Ge isotope as well high detection efficiency, are all key ingredients for highly sensitive $0\nu\beta\beta$ search. ...