Revert "Changed out the w_perp^2 = w^2 - q^2/4*mu_N to 2/3 * w^2 per Aaron's advice"
Revert "Changed out the w_perp^2 = w^2 - q^2/4*mu_N to 2/3 * w^2 per Aaron's advice"

This reverts commit dbbf0f18aa3143a5c792e769d79b2d3d5cec9e65.

aaronvincent/captngen