FeynArts 3 README file FeynArts is a Mathematica package for the generation and visualization of Feynman diagrams and amplitudes. To install FeynArts, unpack the archive FeynArts-3.3.tar.gz in a directory. FeynArts requires Mathematica 3 or higher. For Mathematica versions less than 4.2, the J/Link package and a Java Runtime Environment need to be installed to be able to use the topology editor of FeynArts. Both ingredients can be obtained free of charge from http://www.wolfram.com/solutions/mathlink/jlink (J/Link), http://java.sun.com/j2se (Java). Installing a Java VM may not even be necessary, as many systems (e.g. Windows) have it pre-installed. Follow the instructions that come with J/Link for installation on the various platforms. More detailed instructions can be found in the manual, in the file FA3Guide.ps.gz. The latest version of FeynArts can be downloaded from http://www.feynarts.de. Enjoy! Thomas Hahn hahn@feynarts.de