You should use industry standard terminology wherever possible in order to maximize understandability. If this is not possible for some reason, and a new term needs to be defined, then it must be defined in the documents where it is used, in an introductory section. If the definition is so large that it requires a document unto itself to define it, then it would be permissible to refer the reader to this document to obtain the definition. None of these steps were taken. The document assumes that the reader knows what a gluon is as used in its unique way. As it stands now, it is simply incomprehensible.