“…The interpretation of quantum field theories in terms of particles is a longstanding fundamental problem [Ha58,Ru62,LSZ55,CD82]. The last two decades witnessed significant progress on this issue, both on the side of structural analysis [Bu90, Po04.1, Po04.2, Dy05,Dy09] and in the study of concrete models [Sp97,DG99,FGS04,Le08]. By combining methods of algebraic quantum field theory [Ha] with insights from the form-factor program [SW00,BFK06], the first examples of local, relativistic quantum field theories, which are interacting and asymptotically complete, have been constructed in [Le08] .…”