A state-of-the-art proton decay experiment is expected to detect 47% of the proton decays in a body of water. Assuming protons have a lifetime of 1031 years, how many m3 of water would you need in order to see 2 decays per month? (Assume a "month" is one-twelfth of a year.)

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Chapter11: Particle Physics And Cosmology
Section: Chapter Questions
Problem 60P: Suppose you are designing a proton decay experiment and you can detect 50 percent of the proton...
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A state-of-the-art proton decay experiment is expected to detect 47% of the proton decays in a body of water. Assuming protons have a lifetime of 1031 years, how many m3 of water would you need in order to see 2 decays per month?  (Assume a "month" is one-twelfth of a year.)

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