Howard Georgi | |
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| Born | Howard Mason Georgi III (1947-01-06)6 January 1947 (age 78) |
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| Doctoral advisor | Charles M. Sommerfield |
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Howard Mason Georgi III (born January 6, 1947 inSan Bernardino) is an American theoretical physicist and the Mallinckrodt Professor ofPhysics and Harvard College Professor atHarvard University.[1] He is also director of undergraduate studies in physics. He was co-master and then faculty dean ofLeverett House with his wife, Ann Blake Georgi, from 1998 to 2018. His early work was inGrand Unification andgauge coupling unification within SU(5) and SO(10) groups (seeGeorgi–Glashow model).
Georgi graduated fromPingry School in 1964,[2] graduated from Harvard College in 1967 and obtained his Ph.D. fromYale University in 1971.[1] He was junior fellow in theHarvard Society of Fellows (1973–1976) and a senior fellow from (1982–1998).[1]
In early 1974 Georgi (withSheldon Glashow) published the first grand unified theory (GUT), the Minimal SU(5)Georgi–Glashow model.[3] Georgi independently (alongsideHarald Fritzsch andPeter Minkowski) published a minimalSO(10) GUT model in 1974.[4]
Georgi proposed an SU(5) GUT model with softly broken supersymmetry withSavas Dimopoulos in 1981. This paper is one of the foundational works for thesupersymmetric Standard Model (MSSM). After the measurements of the three Standard Model gauge couplings atLEP 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 includingcomposite Higgs models,heavy quark effective theory,dimensional deconstruction,little Higgs,[5] andunparticle theories.
Unparticle physics is a theory that there exists matter that cannot be explained in terms of particles, because its components arescale invariant. Howard Georgi proposed this theory in the spring of 2007 in the papers "Unparticle Physics" and "Another Odd Thing About Unparticle Physics".[6][7]
Together withVadim Kuzmin, Georgi received thePomeranchuk Prize of theAlikhanov Institute for Theoretical and Experimental Physics (ITEP) in 2006.[5]
Georgi has published several books, one of which isLie Algebras in Particle Physics published by World Scientific. He has also publishedThe Physics of Waves andWeak Interactions and Modern Particle Theory.
In 1995 he was elected to theNational Academy of Sciences[1] and received theSakurai Prize; in 2000 he shared theDirac Medal withJogesh Pati andHelen Quinn.[8]
