**Could there be 3 Gravitons?**

Spin Inversion Symmetry (SIS) is currently a conjecture.

It says says that every elementary particle of spin s has a dual particle of spin 1/s. Of course, SIS does not apply to the spin-0 Higgs Boson. But it applies to all other elementary particles in the Standard Model and to the graviton.

So, applying SIS to the 3 neutrinos (electron neutrino, muon neutrino, tau neutrino) we get 3 neutral spin-2 bosons. A trio of gravitons?

It's still a hunch. But if true the implications are amazing.

Is there a physical principle behind SIS?

I'm not sure, but here's an interesting model that provides some guidance. Hint: Think String Theory and associate one half twist with spin-1/2.

A model for SIS

Content written and posted by Ken Abbott abbottsystems@gmail.com