Abelleira, José LuisZimmermann, Frank2013-11-092013-11-092013-11-092013https://infoscience.epfl.ch/handle/20.500.14299/96781Considering a generic double-ring collider, we discuss the matching from an antisymmetric optics in the arcs to a symmetric optics in the interaction region (IR) by means of an antisymmetric matching section. As an example, we present an application to the LHC, for which a symmetric IR with extremely flat beams is under studytext::conference output::conference proceedings::conference paper