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In ordinary radioactive decay, a W particle may be created even though the decaying particle has less mass than the W particle. If you assume $\Delta E \approx$ mass of the virtual W, what is the expected lifetime of the W?

Source: Giancoli, Douglas C., Physics: Principles with Applications, 7th Edition, 2014.

Quick Answer: 

$8 \times 10^{-27} \textrm{ s}$

Giancoli 7th Edition, Chapter 32, Problem 33


Chapter 32, Problem 33 is solved.

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