\(=-\frac{2}{H^{2}\ \sqrt{\pi}}\int_{\frac{\text{G\ }}{\sqrt{t_{0}}}}^{\frac{\text{G\ }}{\sqrt{t_{f}}}}{\ e^{-w^{2}}\text{\ dw}}+\frac{2}{{\sqrt{\pi}\text{\ H}}^{2}}\int_{\frac{\text{G\ }}{\sqrt{t_{0}}}}^{\frac{\text{G\ }}{\sqrt{t_{f}}}}{\ \frac{\text{G\ H}\text{\ e}^{-w^{2}}}{w^{2}}\text{\ dw}}\) |
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