The doubly heavy baryons

We present the results for the masses of the doubly heavy baryons ${\mathrm{\Xi }}_{Q{Q}^{\mathrm{\prime }}}$ and ${\mathrm{\Omega }}_{Q^{\mathrm{\prime }}Q}$ where $Q,Q^{\mathrm{\prime }}=b,c$ obtained in the framework of the simple approximation within the nonperturbative string approach.