Consider the following integral that comes out of a loop calculation along with some fermionic propagators (e.g virtual one loop correction to a ##p \gamma^* \rightarrow p'## process such as in DIS):(adsbygoogle = window.adsbygoogle || []).push({});

$$ \int \frac{\text{d}^d l}{l^2 (l-p)^2 (p+q-l)^2} \text{Tr}(\not p \gamma^{\nu} (\not p + \not q) \gamma^{\sigma} (\not p + \not q - \not l) \gamma^{\mu} (\not p - \not l) \gamma^{\rho})$$

What is the general methodology to go about solving such integrals? I think I can obtain a closed form solution for the trace but not sure how to proceed from there.

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# Computation of non scalar loop integrals

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