Howard Georgi
Howard Mason Georgi III ( born January 6, 1947 in San Bernardino, California) is an American physicist.
Biography
Georgi studied at Harvard University ( Bachelor " magna cum laude" in Physics and Chemistry, 1967) and in 1971 received his doctorate at Yale University for Ph. D.. Since 1971 he is at Harvard, where he was from 1973 to 1976 Junior Fellow, Associate Professor in 1976 and in 1980 had a full professorship. He's there since 1992 Mallinckrodt Professor and in 2005 Harvard College Professor.
Georgi is known for work on GUTs, in particular in his pioneering work with Sheldon Lee Glashow 1974 GUTs the gauge groups SU ( 5) and SO (10 ), also play a role as favorites today are still in a modified form. With Helen Quinn and Steven Weinberg, he found evidence of the mutual approach of the renomalisierten coupling constants in GUTs. With Thomas Appelquist, he led one of the first works for the calculation of radiative corrections in quantum chromodynamics ( QCD). With De Rujula and Glashow, he predicted the low-energy spectrum of the charmonium and made predictions of a modified QCD with the quark model. He also worked with, among others, David Politzer on perturbative QCD, on the effective quantum field theories ( in general frame and from 1990 for heavy quarks ), theories with composite Higgs particle and technicolor theories, developed with Savas Dimopoulos 1981 early supersymmetric GUTs, the so-called MSSM (Minimal Supersymmetric Standard Model). By Nima Arkani - Hamed, he developed " Dimensional Deconstruction ", implement the advantages of theories with extra dimensions in a four-dimensional space-time, by using gauge groups, which are the direct product of identical copies of GUT gauge groups.
In 2007, he suggested the possibility of Unparticle Physics (literally non- elementary particle physics ), the possible existence of a scale-invariant field theory in the low energy range. It could not be described by particles with non-zero masses ( as these in the low energy region are not scale invariant ), to make interaction with particles of the standard model but as a cause of missing energy and missing momentum noticeable. If the scaling dimension d odd, it would resemble a theory with an odd number of d massless what one of the signatures is that Georgi has discussed for such theories.
1976 to 1980 he was a Sloan Fellow. In 1995 he was elected a member of the National Academy of Sciences and was awarded the Sakurai Prize. In 2000 he was awarded the Dirac Medal ( ICTP ). In 2006 he received the Pomeranchuk Prize. 1982 to 2004 he was editor of Physics Letters, Series B. He is a member of the American Academy of Arts and Sciences.
His students include Benjamin Grinstein, John Hagelin, Lawrence J. Hall, David B. Kaplan, Aneesh Manohar, Ann Nelson and Lisa Randall.
Works
- The Physics of Waves, Prentice- Hall 1992