G. Peter Lepage

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Gerard Peter LePage (born April 13, 1952 in Montreal ) is a Canadian theoretical physicist.

Lepage studied at McGill University with a bachelor's degree in 1972 and at Cambridge University with a master's degree in theoretical physics in 1973. In 1978 he received his doctorate from Stanford University . Since 1980 he was a professor at Cornell University , where he was Dean of the College of Arts and Sciences from 2003 to 2013.

He is a member of the American Academy of Arts and Sciences , was a Sloan Research Fellow (1983–1985) and Guggenheim Fellow (1996/97) and is a Fellow of the American Physical Society . Since 2012 he has been a member of the National Science Board.

Lepage was visiting scholar at the Institute for Advanced Study , the DAMTP in Cambridge, the Institute for Theoretical Physics at the University of California, Santa Barbara, the Fermi National Accelerator Center and the Institute for Nuclear Theory, Seattle.

Lepage is known for some work in the late 1970s and early 1980s with Stanley Brodsky on QCD perturbation theory of exclusive scattering processes.

He deals with precision calculations in the context of quantum electrodynamics and quantum chromodynamics (QCD) both in atomic physics, nuclear physics (few-body problem), systems of heavy quarks, exclusive scattering processes with high momentum transfer. He also undertook high-performance computer simulations of non-perturbation-theoretic grid QCD (HPQCD collaboration). These led to the calculations of the QCD contributions with a range of just a few percent for different observation quantities (quark and hadron masses, coupling constants and mixing angle in the standard model, magnetic moment of the muon) and made it possible in particular to determine the QCD contributions for precision tests of the standard model (see above that these are distinguishable from possible contributions of new physics beyond the standard model). He was responsible for the much used Vegas algorithm for adaptive Monte Carlo integration.

He also deals with physics pedagogy at all levels.

For 2016 he received the Sakurai Prize for innovative applications of quantum field theory in elementary particle physics, in particular for the establishment of the theory of exclusive processes, the development of non-relativistic effective field theories and the determination of parameters of the standard model with lattice theories (laudation).

He served on the editorial boards of Physical Review D and Physical Review Letters and received the APS Outstanding Referee Award.

Fonts

  • with Stanley Brodsky : Exclusive processes in perturbative quantum chromodynamics, Physical Review D 22, 1980, p. 2157
  • with Stanley Brodsky: Exclusive processes in quantum chromodynamics: Evolution equations for hadronic wavefunctions and the form factors of mesons, Physics Letters B, Volume 87, 1979, pp. 359-3365
  • with Geoffrey Bodwin, Eric Braaten: Rigorous QCD analysis of inclusive annihilation and production of heavy quarkonium, Physical Review D, 51, 1995, 1125
  • A new algorithm for adaptive multidimensional integration, J. Comput. Physics, Vol. 27, 1977, p. 192
  • with Paul B. Mackenzie: Viability of lattice perturbation theory, Physical Review D, Volume 48, 1993, p. 2250
  • with Stanley Brodsky, Paul Mackenzie: On the elimination of scale ambiguities in perturbative quantum chromodynamics, Physical Review D, Volume 28, 1983, p. 228
  • with WE Caswell: Effective Lagrangians for bound state problems in QED, QCD, and other field theories, Phys. Letters B, Volume 167, 1986, pp. 437-442
  • with Lorenzo Magnea, Charles Nakhleh, Ulrika Magnea, Kent Hornbostel: Improved nonrelativistic QCD for heavy-quark physics, Physical Review D, Volume 46, 1992, p. 4052

Web links

Individual evidence

  1. HPQCD Collaboration