Howard Georgi

Howard Mason Georgi III (born January 6, 1947) is an American theoretical physicist and the Mallinckrodt Professor of Physics and Harvard College Professor at Harvard University. graduated from Harvard College in 1967 and obtained his Ph.D. from Yale University in 1971. Georgi independently (alongside Harald Fritzsch and Peter Minkowski) published a minimal SO(10) GUT model in 1974.

Georgi proposed an SU(5) GUT model with softly broken supersymmetry with Savas Dimopoulos in 1981. This paper is one of the foundational works for the supersymmetric Standard Model (MSSM). After the measurements of the three Standard Model gauge couplings at LEP I in 1991, it was shown that particle content of the MSSM, in contrast to the Standard Model alone, led to precision gauge coupling unification.

He has since worked on several different areas of physics including composite Higgs models, heavy quark effective theory, dimensional deconstruction, little Higgs, and unparticle theories.

Unparticle physics is a theory that there exists matter that cannot be explained in terms of particles, because its components are scale invariant. Howard Georgi proposed this theory in the spring of 2007 in the papers "Unparticle Physics" and "Another Odd Thing About Unparticle Physics".

Together with Vadim Kuzmin, Georgi received the Pomeranchuk Prize of the Alikhanov Institute for Theoretical and Experimental Physics (ITEP) in 2006.