The 11th Zimányi Winter School on Heavy Ion Physics is held at the KFKI Research Institute for Particle and Nuclear Physics of the Hungarian Academy of Sciences, and partly at the Eötvös University, during November 28 - December 2, 2011. For more details, please visit the web-page http://zimanyischool.kfki.hu/11/ We will discuss important plans and results from RHIC and LHC, as well as from J-PARC. Further topics of the school include femtoscopy in high energy collisions, hydrodynamic and other models of the strongly interacting QGP, among others. As usual a section will be devoted to recent results in lattice QCD. We may organize also a special session on the neutrino physics at J-PARC and CERN. An important aim of the school is, as always, to deepen the collaboration between experimental and theoretical physicists working on similar topics of physics.