  We analyze the ground state of a system of dipolar bosons moving in the $XY$
plane and such that their dipolar moments are all aligned in a fixed direction
in space. We focus on the general case where the polarization field forms a
generic angle $\alpha$ with respect to the $Z$ axis. We use the Path Integral
Ground State method to analyze the static properties of the system as both
$\alpha$ and the density $n$ vary over a wide range were the system is stable.
We use the maximum of the static structure function as an order parameter to
characterize the different phases and the transition lines among them. We find
that aside of a superfluid gas and a solid phase, the system reaches a stripe
phase at large tilting angles that is entirely induced by the anisotropic
character of the interaction. We also show that the quantum phase transition
from the gas to the stripe phase is of second order, and report approximate
values for the critical exponents.
