Exotic physics with ultrahigh energy cosmic rays Illana Calero, José Ignacio Ahlers, Markus Masip Mellado, Manuel Meloni, Davide Black holes Collisions TEV Dimensions Gravity Strings Presented at the XXXI International Conference of Theoretical Physics, “Matter to the Deepest”, Ustroń, Poland, September 5–11, 2007. Ultrahigh energy cosmic rays provide a unique ground for probing new physics. In this talk we review the possibility of testing TeV gravity in interactions of cosmogenic neutrinos and the potential to discover longlived exotic particles in nucleon-produced air showers, such as gluinos of split-SUSY models or staus of supersymmetric models with a gravitino LSP. 2014-07-22T09:38:49Z 2014-07-22T09:38:49Z 2007 info:eu-repo/semantics/article Illana, J.I.; Exotic physics with ultrahigh energy cosmic rays. Acta Physica Polonica B, 38(11): 3357-3364 (2007). [http://hdl.handle.net/10481/32732] 0587-4254 http://hdl.handle.net/10481/32732 eng http://creativecommons.org/licenses/by-nc-nd/3.0/ info:eu-repo/semantics/openAccess Creative Commons Attribution-NonCommercial-NoDerivs 3.0 License Jagiellonian University