If $\int \sqrt{\sec 2x - 1}\, dx = \alpha \log_{e}\left|\cos 2x + \beta + \sqrt{\cos 2x\left(1 + \cos \frac{1}{\beta}x\right)}\right| + \text{constant}$, then $\beta - \alpha$ is equal to $\_\_\_\_$.
If $\int \sqrt{\sec 2x - 1}\, dx = \alpha \log_{e}\left|\cos 2x + \beta + \sqrt{\cos 2x\left(1 + \cos \frac{1}{\beta}x\right)}\right| + \text{constant}$, then $\beta - \alpha$ is equal to $\_\_\_\_$.