Skip to main content
2 of 5
added 120 characters in body
Carlo Beenakker
  • 188.2k
  • 18
  • 448
  • 651

the small-$\rho$ asymptotics is governed by the large-$k$ behavior of the integrand, which gives a scaling as $\propto 1/[ \rho^{(2-1.9)}\log\rho]$, and numerics suggest that

$$\lim_{\rho\rightarrow 0}\rho^{0.1}\log\rho \int_{1.1}^{\infty}\frac{\sin(k\rho)}{k^{1.9}\rho}\frac{1}{\log\frac{1}{k}}\,dk\approx 25$$

Carlo Beenakker
  • 188.2k
  • 18
  • 448
  • 651