Physics told about the possible discovery of the dark photon
On the channel of the European center for nuclear research (CERN) in YouTube there is a video which tells about an experiment NA64, which physicists hope to find dark photon.
This hypothetical particle is assumed to be a mediator between the visible and dark matter. For the study used proton supersynchronous — particle accelerator ring. A beam of electrons whose initial energy is known with a high speed goes to the detector and collides with atoms and produces visible photons.
If, after nuclear reactions scientists will miss a certain amount of energy, it would mean that she was gone dark photons. The discovery of these particles will allow physicists to confirm some hypothetical properties of the dark matter and open a new type of fundamental interaction (along with gravitational, electromagnetic, strong and weak).