George F. Stermann | |
---|---|
Born | |
Nationality | American |
Alma mater | University of Chicago University of Maryland |
Known for | Sterman-Weinberg Jets proof of factorization theorems Resummation |
Awards | J.J. Sakurai Prize for Theoretical Particle Physics (2003) |
Scientific career | |
Fields | Physics |
Institutions | C. N. Yang Institute for Theoretical Physics Stony Brook University |
Doctoral advisor | Alex J. Dragt [2] |
Doctoral students | Sunil Mukhi, Ashoke Sen |
George Franklin Sterman (born June 2, 1946) [3] is an American theoretical physicist and the Director of the C. N. Yang Institute for Theoretical Physics at Stony Brook University where he holds the rank Distinguished Professor.
George Sterman received an A.B. from the University of Chicago in 1968. He earned his Ph.D. from the University of Maryland in 1974, [4] and held research associate positions at the University of Illinois (1974–1976), Stony Brook University (1976–1978) and the Institute for Advanced Study (1978–1979), before joining the faculty of the C.N. Yang Institute for Theoretical Physics at Stony Brook in 1979. He became director of the Institute in 2001. [5]
George Sterman's research focuses on quantum field theory and its applications in quantum chromodynamics. [6] With Steven Weinberg he proved the infrared finiteness of jet cross sections, thus proving that perturbation theory is a safe method in that regime. [5] He also worked on reformulation and proof of factorization theorems with Stephen Libby, John C. Collins and Davison E. Soper. [5] He authored a textbook entitled An Introduction to Quantum Field Theory in 1993. [7] As of 2010 he has over 190 papers listed as published on HEP-SPIRES.
George Sterman was awarded the 2003 J.J. Sakurai Prize for Theoretical Particle Physics "For developing concepts and techniques in QCD, such as infrared safety and factorization in hard processes, which permitted precise quantitative predictions and experimental tests, and thereby helped to establish QCD as the theory of the strong interactions." [5] He received a Guggenheim Fellowship in 1985, is a Fellow of the American Physical Society and has served as an Associate Editor for Physical Review Letters. [5]
In theoretical physics, quantum chromodynamics (QCD) is the theory of the strong interaction between quarks mediated by gluons. Quarks are fundamental particles that make up composite hadrons such as the proton, neutron and pion. QCD is a type of quantum field theory called a non-abelian gauge theory, with symmetry group SU(3). The QCD analog of electric charge is a property called color. Gluons are the force carriers of the theory, just as photons are for the electromagnetic force in quantum electrodynamics. The theory is an important part of the Standard Model of particle physics. A large body of experimental evidence for QCD has been gathered over the years.
Yang Chen-Ning or Chen-Ning Yang, also known as C. N. Yang or by the English name Frank Yang, is a Chinese theoretical physicist who made significant contributions to statistical mechanics, integrable systems, gauge theory, and both particle physics and condensed matter physics. He and Tsung-Dao Lee received the 1957 Nobel Prize in Physics for their work on parity non-conservation of weak interaction. The two proposed that one of the basic quantum-mechanics laws, the conservation of parity, is violated in the so-called weak nuclear reactions, those nuclear processes that result in the emission of beta or alpha particles. Yang is also well known for his collaboration with Robert Mills in developing non-abelian gauge theory, widely known as the Yang–Mills theory.
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