Restmass, lifetime of a meson

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[SOLVED] Restmass, lifetime of a meson

Homework Statement



A [tex]\rho[/tex] meson is a highly unstable subatomic particle with a rest mass of 776 MeV/c^2 and a mean lifetime of [tex]4\times10^{-24}[/tex]s. What is the minimum uncertainty in the meson's energy?

Homework Equations



We know that rest energy of a particle E = mc^2, m being rest mass I'm assuming.

The Attempt at a Solution



I don't even know where to begin. I'm not sure what they're asking, and what it is I need to calculate.
 

Answers and Replies

  • #2
Doc Al
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I suspect that they want you to apply the so-called energy-time uncertainty principle. Look it up!
 

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