(November 30, 2022 at 7:59 am)Jehanne Wrote:(November 30, 2022 at 6:23 am)LinuxGal Wrote: The Minimal Supersymmetric Standard Model has the most unstable of the possible proton decay chains that hasn't been ruled out by experiment, on the order of 10³⁴ years. But it also has a slew of particles that should have been seen at the LHC already.
If the Universe is destined to expand forever, there is plenty of time for proton decay to occur.
Stuff is sliding over our observable horizon all the time. Eventually every proton will be alone in it's own local universe. Then it if decays into a couple of cosmic ray photons, big deal.
