The phrase "explained by the existence" is correct and usable in written English.
It is typically used to indicate that a phenomenon can be attributed to the presence of something else. For example: "The rise in prices can be explained by the existence of high demand."
The nature of this gap in science, which may very well be explained by the existence of the Higgs boson, will never be known.
Several years ago, however, data from the Galileo spacecraft showed that the moon had a variable magnetic field, which could be best explained by the existence of an ocean between the shell and the core.
The duality of his nature was explained by the existence of a good and bad impulse, personified by two angels, yetzer ha-ṭov (the good inclination) and yetzer ha-raʿ (the evil inclination), which enter each man after birth.
Such result could be explained by the existence of two size fractions of AgNPs.
This can be explained by the existence of strong interferences in the case of HCl/MeOH method.
This can be explained by the existence of specular points on facades inducing a perfect geometrical reflection on the walls.
The result can be explained by the existence of SPC on the surface of the hybrid PLA NPs/MMC-SPC.
Zero inflation can be explained by the existence of a dual-state process for ANC data generation.
These variations were explained by the existence of a distribution of site energies (mercaptoacetic acid molecules) on the electrode surface.
Furthermore, there are behaviors that can only be explained by the existence of norms, even if the behavior prescribed by the norm in question is never observed.
The persistence of non-integrated market structures may be explained by the existence of equally dominant firms which make merger decisions sequentially.
