In our theory, quantum gravity is the heart of the new physics where the rest mass of a particle emerges from the mass of the same particle but considered as a black hole, we then speak of black holes of the proton and neutron types and even electron. in this theory which introduces quantum gravity there is no rest mass if the particle is not a black hole of the paticule type. But the definition of the mass of the quantum black hole differs from that of Schwarzschild for the cosmological black hole. Indeed according to our theory the mass of the cosmological black hole is simply the sum of the masses of all the particles which constitute the total mass of the black hole as for example according to our theory the black hole of cygnus X-1 contains ten to the power of fifty eight neutrons according to our preprint in RG.