∫[0,∞)nt1⁢t2⁢⋯⁢tm⁢|Δ⁡(t1,…,tn)|2⁢c⁢∏k=1ntka-1⁢ⅇ-tk⁢ⅆ⁡tk=∏k=1m(a+(n-k)⁢c)⁢∏k=1nΓ⁡(a+(n-k)⁢c)⁢Γ⁡(1+k⁢c)(Γ⁡(1+c))n,