Re: PHYSICS: Time to collapse of universe?

Michael Lorrey (
Sun, 29 Dec 1996 13:40:13 -0500

John K Clark wrote:
> would include Gravity too. A few years ago the most popular GUTS theory was
> called SU(5), it predicted that the half life of the proton was 10^31 years.
> Several very large and expensive experiments were performed and they should
> have detect this decay, but they did not, so SU(5) must be wrong. If the
> Proton does decay its half life is a good deal greater than 10^31 years.

Oh, I thought I had read that protons had been seen to decay, which led
to projections on its decay rate....


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