Experimental research in high-energy physics at the University of Warsaw was initiated in 1952 when Professors Marian Danysz and Jerzy Pniewski formed a group studying the interactions of cosmic rays in nuclear emulsion. Presently, experimental research on the fundamental constituents of matter and their interactions are only possible with the use of huge detector systems and infrastructures, available at a select few research centers throughout the world. Physicists from the Division of Particles and Fundamental Interactions participate in research conducted at many international research centers: CERN in Geneva, DESY in Hamburg, FNAL and BNL in the United States, KEK and ICRR in
Japan. While we participate in large international collaborations, we also cooperate closely with many Polish research and academic units, in particular with the National Center of Nuclear Research (NCBJ) in Świerk, Warsaw University of Technology, the Institute of Nuclear Physics of the Polish Academy of Sciences (IFJ PAN), AGH University of Science and Technology in Kraków, and the University of Silesia. Our research interests range from studying the properties and interactions of the fundamental constituents of matter, as described by the Standard Model (quarks, gluons, electrons, muons, taus, neutrinos, Higgs particles), to searching for new objects suggested by hypotheses and models of the evolution of the universe that might also explain its observed structure.