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A pi^(sigma) meson at rest decays into t...

A `pi^(sigma)` meson at rest decays into two photons of equal energy. If the wavelength (in `m`) of the photons is `1.8xx10^(-n)` then find `n//2` ( The mass of the `pi^(o)135 Me V//c`)

Text Solution

Verified by Experts

The correct Answer is:
`7`
`Er=(M_(pi)C^(2))/(2)=(135)/(2)=67.5MeV`
`lambda=(hc)/(E )(1242)/(67.5xx10^(3))Å`
`lambda=1.84xx10^(14)m`
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