# An integration problem

1. Jun 8, 2007

### cosmology

who can help me?how to derive (1)
please show me explict calculation

2. Jun 9, 2007

### siddharth

Nobody's going to do your work for you. The guidlines of this forum state that you need to show some work before you get help.

3. Jun 9, 2007

### chaoseverlasting

This integral isn't tough, its just bloody long!!! For the inner integral:

$$\frac{a-b}{c}ln(\frac{b+c-cx_2}{b})-\frac{a}{c}x_2$$

Here, $$a=1-x_2$$

$$b=\lambda^2(1-x_2)$$

$$c=q^2x_2-\lambda^2$$.

For the second integral, you're on your own mate.... good luck.