Do gravitons exist?

Spinalcold

LIGO has yet to find a gravity wave, I hope LISA will be able to (if funding isn't cut like it has been in north america for a lot of projects). I just think it's premature to think gravity fits into particle physics. The dream is unification, but there is no reason that a reductionist approach will work. It may take more complex theories and more computational power.

Gravity and the standard model are not unified, they may never be in a single formula; it may be a dynamic formula.

Phantom13

I don't have much understanding of physics myself yet and I don't claim to. I'm only a sophomore in highschool, so please do not criticize me heavily if I say something you do not agree with. Rather than elaborate on all of your opinions I just have a few questions though. The first guy who created this thread, Wyzeguy, was claiming that a "graviton" would react in the same way as a photon by effecting something with more volume, because he thought that in theory, gravitons and photons are supposed to be similar particles. Just because the particles are similar though does not mean they would have similar properties or behave in the same way. We could say that gravitons are in a way a part of the Higgs field correct? Rather than interacting with volume, they interact with mass, and in a similar way that photons would have a greater force on something with larger volume like a solar sail, gravitons would have more effect on something with more mass. So if we were searching for a graviton, and gravitons are directly linked to mass, then how could we expect to find it before even discovering something like the Higgs boson? Like I said, I am uneducated and just want to ask a couple questions to anyone that would answer, so here they are. Is it possible that gravitons only exist and work in the Higgs field itself, in which case without discovering evidence of the Higgs field, how could we begin to hope for the graviton to pop up? Let us say that the graviton wasn't part of the Higgs field though, where would it be found? Another question I have is although things such as electrons, neutrinos, and other leptons have almost no mass, do we see signs of them exerting gravity? Also, when we do experiments with particle accelerators and are able sometimes to rarely see individual quarks, how do scientist determine their mass and can it be seen whether they are exerting gravity or not? My last questions is, we know that anything with mass has gravity because mass and gravity are linked, but if we can't yet measure gravity being exerted by individual quarks, then who's to say that the graviton is not linked to mass, but rather it is linked to individual quarks themselves and would be a particle similar to a gluon?