Assuming \(\frac{g}{4!} \pi^4(x)\) interaction for neutral pions of mass \(m\), find
- transition probability per unit time per unit volume for \(\pi - \pi\) scattering
- compute the total cross section for the scattering process and show that \[ \frac{d\sigma}{d\Omega}= \frac{g^2}{64\pi^2 E_\text{cm}^2}\]Be careful about normalization of two identical pion states.
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4727:Diamond Point
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