At least it should be a simple integral...(adsbygoogle = window.adsbygoogle || []).push({});

1. The problem statement, all variables and given/known data

The whole text is here- http://i35.tinypic.com/2nisnp.jpg

Basically (I think) I need to integrate the differential over all angles theta and phi, and get sigma(naught) back out.

2. Relevant equations

given in pic

3. The attempt at a solution

If I use the given substitution and integrate I get log(tan(pi/2)) which is log(0) which is broken... I don't really know where to go other than that.

Thanks! Been reading the forum for a long time but this is my first question :)

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# Homework Help: Differential cross section/simple integral

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