Effect of field tilting on the vortices in irradiated Bi-2212

We report on transport measurements in a Bi-2212 single crystal with columnar defects parallel to the c-axis. The tilt of the magnetic field away from the direction of the tracks is studied for filling factors f = B x /B o < 1. Near the Bose Glass transition temperature T BG , the angular scaling laws are verified and we find the field independent critical exponents ν' = 1.1 and z' = 5.30. Finally, above H⊥ C we evidence the signature of a smetic-A like vortex phase. These experimental results provide support for the Bose Glass theory.