Figure 3
From: Compton Scattering of γ-Ray Vortex with Laguerre Gaussian Wave Function

The contour plots of the differential cross-section of Compton scattering integrated over the azimuthal angle ϕy at cosθe = 0.95 when L = 1, p = 0 (a), L = 2, p = 0 (b), L = 3, p = 0 (c), and L = 1, p = 1 (d). The horizontal axis shows the energy difference ΔE from that in standard Compton scattering, and the vertical axis shows the polar angle between zx-plane and the scattered photon angle.