Stanley Brodsky

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Stanley Jerome Brodsky (born January 9, 1940 in Saint Paul ) is an American theoretical physicist.

Life

Brodsky studied physics at the University of Minnesota , where he received his bachelor's degree in 1961 and his PhD in 1964 under Donald Yennie . He then carried out research as a postdoc at Columbia University with Tsung-Dao Lee and from 1966 at the Stanford Linear Accelerator Center (SLAC) at Stanford University under the direction of Sidney Drell . From 1968 he was a permanent member of the theory department, from 1975 associate professor and from 1976 professor and head of the theory group at SLAC from 1996 to 2002. a. Visiting scholar at the Institute for Advanced Study (1982) and Sackler-Lecturer at Tel Aviv University (2006) as well as visiting professor a. a. at Cornell University , Cambridge University , the University of California, Santa Barbara , the College of William and Mary (2003) and the Weizmann Institute (1978, 1983, 1994). From 1989 he is an external scientific member at the Max Planck Institute for Nuclear Physics in Heidelberg . From 2004 he was a member of the scientific advisory committee at the Society for Heavy Ion Research (GSI) in Darmstadt , the Lawrence Berkeley National Laboratory and from 2003 to 2006 at the Brookhaven National Laboratory .

Brodsky is concerned with high-energy physics and nuclear physics aspects of quantum chromodynamics (QCD), especially using light front formalism (a quantization method originally from Paul Dirac in a space-time coordinate system at very high speeds) on exclusive high-energy scattering processes on hadrons ("hard exclusive processes") ). In 1979 he and Peter Lepage developed a justification for the “dimensional counting rules” that he had previously found in 1973 with Glennys Farrar. These theories gave quantitative support for the Parton picture. Brodsky also investigated novel phenomena in perturbation-theoretical and non -perturbation- theoretic QCD such as color transparency and, together with H. Pauli, developed the discretized light cone quantization (DLCQ) as a numerical method for the treatment of high-energy phenomena of QCD. Further fields of work are calculations for precision tests of quantum electrodynamics (QED) and from the 1990s AdS / CFT applications in QCD.

In 1987 he received a prize from the Alexander von Humboldt Foundation (Senior United States Distinguished Science Award). In 2007 he received the Sakurai Prize . For 2015 he was awarded the Pomeranchuk Prize . In 2003 he became a Distinguished Fellow of the Thomas Jefferson National Accelerator Laboratory. He is Associate Editor of Nuclear Physics B and Nuclear Physics B Proceedings Supplements.

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Remarks

  1. ↑ A scattering process is understood as exclusive, in which the scattering partners are defined in the final state and where a series of final state products is not added up as is the case with "inclusive" processes
  2. ↑ asymptotic power laws for the dependence of the cross sections on the square of the center of gravity energy s. The higher s, the “harder” the spread.
  3. ^ Lepage, Brodsky: Exclusive processes in quantum chromodynamics: Evolution equations for hadronic wavefunctions and the form factors of mesons, Physics Letters B, Volume 87, 1979, pp. 359-365
  4. ↑ Brodsky and Farrar: Scaling laws at large transverse momentum . In: Physical Review Letters . Volume 31, 1973, p. 1153
  5. ↑ Partons are point-like scattering centers in hadrons during high-energy scattering, introduced by Richard Feynman in the late 1960s and identified with quarks in QCD
  6. ↑ If z. B. an electron with high momentum transfer scattered on a hadron or nucleus to form a meson from the "virtual" photon that is exchanged during the scattering, one observes that this meson moves all the more freely in the hadron where it was generated, the higher the momentum transfer. This is known as color transparency and is a prediction of the QCD.
  7. ↑ For example with Hans Günter Dosch , GF de Téramond, J. Erlich: Light-front holographic QCD and emerging confinement, Phys. Reports, Volume 584, 2015, pp. 1–105
personal data
SURNAME Brodsky, Stanley
ALTERNATIVE NAMES Brodsky, Stanley Jerome (full name)
BRIEF DESCRIPTION American theoretical physicist
DATE OF BIRTH January 9, 1940
PLACE OF BIRTH Saint Paul