Abstract
The paper deals with the problem of ontological status of unobservable entities of modern physics. Author considers the question whether they are real objects or social constructs? The first point is being supported by constructive realists; the second one is backed by those who stand by a very influential strategy of the so-called social constructionism. Realists assume that intermediate vector bosons (as well as Higgs boson recently discovered by the experiments at the Large Hadron Collider) do exist in reality before being predicted by the theory of electroweak interaction. They are discovered, not created. In the discourse of social constructionism, the mentioned micro-objects, on the contrary, are being created in the process of a specially set up experiments. The author confirms truthfulness of the realistic approach by analyzing the well-known in modern history of physics experiment on discovering the intermediate vector bosons.