Neutrino minimal standard model predictions for neutrinoless double beta decay

Prediction of the effective Majorana mass for neutrinoless double $\beta$ decay in a simple extension of the standard model ($\nu \mathrm{MSM}$) is given. The model adds three right-handed neutrinos with masses smaller than the electroweak scale and explains dark matter of the Universe. This leads to constraints $1.3<m_{\beta \beta }^{\mathrm{NH}}<3.4\mathrm{meV}$ in normal neutrino mass hierarchy and $13<m_{\beta \beta }^{\mathrm{IH}}<50\mathrm{meV}$ in inverted hierarchy.