On the concept of "efficiency loophole" and rejection of local realism
  In this paper I shall demonstrate that an analysis of the concept of "efficiency loophole" leads to the conclusion that any type of charge carried by and elementary particle must be distributed on the surface of a non-spherical object. As a result I shall show that; for example, the eletrostatic field of an electron as seen by an observer, must be in the form of quantized superluminal pulses. Therefore, "efficiency loophole" cannot be used in support of local realistic models. In view of the available experimental results we conclude that a local realistic interpretation of quantum mechanics has now been empirically refuted. However, it can be shown that the inferred superluminal signals do not necessarily contradict the facts of Lorentz transormations and only introduce a weak non-locality into the laws of nature. For this reason we make a preliminary investigation about a possible connection between quantum mechanics and non-spherical charge distributions. We conclude that this idea deserves to be further investigated and its validity or otherwise can be verified experimentally. 
M. R. Mahdavi