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QUESTION
Suppose you are designing a proton decay experiment and you can detect 24 percent of the proton decays in a tank of water.
Suppose you are designing a proton decay experiment and you can detect 24 percent of the proton decays in a tank of water.
(a) How many kilograms of water would you need to see one decay per month, assuming a lifetime of 1031 y?
(b) How many cubic meters of water is this? (Assume the density of water is 1000 kg/m3.)
(c) If the actual lifetime is 1033 y, how long (in months) would you have to wait on an average to see a single proton decay?
