which sub atomic particle exists for ten to the power of minus sisty seven seconds?

Question

i think it is a positron

Answer 1

The answer is Gravitons if not mistaken. They are believed to leave our 4 known dimensions and go into one of the other 7 dimensions for those that subscribe to string theroy.

Answer 2

I don't know the name of the particle you are referring to, but as far as I know, the shortest possible length of time is something like ten to the minus fortieth seconds, which is the Planck time. You can look that up, and maybe that will point you in the right direction. Good Luck!