I wrote an article on low energy meson scattering at high precision. It is posted on the arxiv with an abstract that reads:
A fascinating new generation of experiments has determined certain meson scattering parameters at high precision. A confluence of highly sophisticated theory as well as new experimental ideas have led to this state of affairs, which sheds important light on the properties of the strong interactions. A brief review of the experiments and the theory is presented.
It has been published in Current science and here is the the link.