In the limit ν, Q^2 →∞, with x fixed, show that the Callan-Gross relation implies that the virtu

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Step 1:
Understand the context. The Callan-Gross relation is a fundamental result in deep inelas

In the limit $\nu, Q^2 \rightarrow \infty$, with $x$ fixed, show that the Callan-Gross relation implies that the virtual photon-quark cross sections of $(8.53),(8.54)$ satisfy $$ \frac{\sigma_L}{\sigma_T} \rightarrow 0 $$