Keijo Olavi Kajantie (born 1940) is a Finnish theoretical physicist and Professor and Adjoint Scientist at the Helsinki Institute of Physics. He was Professor of Physics at the University of Helsinki from 1973 to 2008.Facta2001, WSOY 1981, Volume 7, paragraph 447 From 1985 to 1990 he was a Research Professor of the Academy of FinlandWSOY Iso Tietosanakirja Part 3., p. 129, WSOY 1995 and he has worked in the CERN Theory Division.Home page of Keijo Kajantie He is best known for his contributions to the study of the electroweak and strong interactions at high temperatures, as well as to the field of ultrarelativistic nuclear collisions.Scientific publications of Keijo Kajantie on INSPIRE-HEP His research interests include ultrarelativistic nuclear collisions, finite temperature field theory, string theory and QCD matter, cosmological phase transitions and null infinity in general relativity.

Honours and awards Kajantie was awarded the Finnish Academy of Science Award in 2008Finnish Academy of Science Award Former Recipients and the Order of the Lion of Finland in 2012.Highest decorations awarded by the President of the Republic, Helsingin Sanomat Uutiset Kotimaa 4.12.2012, vdated 13.1.2014

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