Butch Posted May 30, 2019 Share Posted May 30, 2019 I have been working on modeling my "proto-particle" some of you are familiar with it... as it turns out my proto-particle is actually a graviton, so I have been doing some reading on that. It is encouraging to see the same problems with math that I have encountered (recently I believe I found a basis for math describing the graviton, more on that later). Can someone explain to me why a graviton must be a spin 2 entity? Link to comment Share on other sites More sharing options...
Sensei Posted May 30, 2019 Share Posted May 30, 2019 +-1/2 spin... +-3/2 spin etc. particles are Fermions... they also have +-1e charge (easily detectable). +-1 spin are Bosons photons (0e charge). If grivation would be in Standard Model +-1 spin with no charge, it would be no distinguishable from photon. Link to comment Share on other sites More sharing options...
Strange Posted May 30, 2019 Share Posted May 30, 2019 7 minutes ago, Sensei said: +-1/2 spin... +-3/2 spin etc. particles are Fermions... they also have +-1e charge (easily detectable). +-1 spin are Bosons photons (0e charge). If grivation would be in Standard Model +-1 spin with no charge, it would be no distinguishable from photon. Bosons have integer spin (and some have charge). Gravitons would have spin 2: https://en.wikipedia.org/wiki/Graviton 46 minutes ago, Butch said: Can someone explain to me why a graviton must be a spin 2 entity? " The graviton must be a spin-2 boson because the source of gravitation is the stress–energy tensor, a second-order tensor(compared with electromagnetism's spin-1 photon, the source of which is the four-current, a first-order tensor)." https://en.wikipedia.org/wiki/Graviton Link to comment Share on other sites More sharing options...
swansont Posted May 30, 2019 Share Posted May 30, 2019 Neutrinos are fermions. Uncharged. 17 minutes ago, Sensei said: +-1/2 spin... +-3/2 spin etc. particles are Fermions... they also have +-1e charge (easily detectable). Neutrinos are fermions. Uncharged. Spin is generally designated as a positive number. The spin projection can be + or - Link to comment Share on other sites More sharing options...
Strange Posted May 30, 2019 Share Posted May 30, 2019 1 hour ago, Sensei said: Fermions... they also have +-1e charge And some have fractional charge! Link to comment Share on other sites More sharing options...
Butch Posted June 8, 2019 Author Share Posted June 8, 2019 All very interesting! Y'all a incredible! While investigating my proto-particle (which I believe now is a graviton) I realized there was no identifiable limit to shells or number in shells of closely interacting gravitons, so I focused on just a pair... It appears to me that a pair of interacting gravitons is indeed a photon! As such it should provide a basis for some math... More on this when I have more time and math. Thx again everyone! Link to comment Share on other sites More sharing options...
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