  We investigate the absorption cross section of planar scalar massless waves
impinging on spherically symmetric black holes which are solutions of the novel
4D Einstein-Gauss-Bonnet theory of gravity. Besides the mass of the black hole,
the solution depends also on the Gauss-Bonnet constant coupling. Using the
partial waves approach, we show that the absorption cross section depends on
the Gauss-Bonnet coupling constant. Our numerical results present excellent
agreement with the low- and high- frequency approximations, including the
so-called sinc approximation.
