Zero Rest Mass And Continuous Energy Spectrum

[petrushkagoogol]

Neutrinos and Photons are chargeless particles yet only the latter find opacity in the human body….

Is this because the latter exist only as a continuous energy spectrum? Photons can be represented by a wave function, and embody wave-particle duality, and matter-waves exalt Schrodingers Theory. Neutrinos can not be represented like this. They have MASS.

Conclusion - Matter waves apply only to zero rest mass particles. Relativity postulates mass as a restraining factor on energy. QM focuses on the continuous wave-function.

Is this true ?