Most of the particles known to physicists are unstable.For example, the lifetime of the
Chapter 5, Problem 62(choose chapter or problem)
Most of the particles known to physicists are unstable.For example, the lifetime of the neutral pion, 0, isabout 8.4 1017 s. Its mass is 135.0 MeV/c2. a) Whatis the energy width of the 0 in its ground state?b) What is the relative uncertainty m/m of the pionsmass?
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