@amiramnoam - Jew families have gone through a lot in the last century in Europe. The world knows their plight and how much they suffered because some communities and leaders who had racial biases. What your father did was probably in the best interest of survival of the family and settling down in those troubled days. Now, of course, you can always consider changing to your original name but as Shakespeare said "What's in a name?" I strongly believe that you, my friend, have a personality that defines you - irrespective of what name you carry. Your work and achievements speak for you.
Regards,
@vm2904