Is there something that is not affected by gravity?

[A_Nony_Mouse]

Is this graviton predicted in the standard model?

No, it doesn't say anything about gravitons.

But beyond the stadard model, there has been a strong suspicion since Einstein that gravity at a deep level is symmetrical with the three forces covered by the standard model. So by analogy with those other three forces, gravity would be expected to also be carried by its own messenger particle, the graviton. Although standard model doesn't predict a graviton, particles fitting the necessary characteristics of gravitons doesn't conflict with the standard model.

So at this point existence of the graviton is a well educated guess, but not a strongly supported fact. The gravitational wave experiments planned can potentially verify the existence of gravitons.

But the Higgs Boson does provide mass. And mass is the cause of GR bending space which is gravity. It would appear the standard model has been satisfied without the need for some "graviton" which has no place in the standard model. And that is the disappointing thing about it. No new physics either hinted at or needed.

Gravitational wave experiments are not related to any graviton. They are an attempt to detect the energy carried away by the interaction of massive object. I Boinc the project.