Heinrich Leutwyler

Heinrich Leutwyler (born Oct 12, 1938) is a Swiss theoretical physicist, with interests in elementary particle physics, the theory of strong interactions, and quantum field theory.In 1962 he received his PhD under the supervision of John R. Klauder (at Bell Laboratories at the time), for his thesis entitled "Generally covariant Dirac equation and associated Boson Fields."Leutwyler spent research visits at the Bell Labs in Murray Hill (1963, 1965), at Caltech in Pasadena (1973/74), and at CERN (1969/70, 1983/84, and 1996).Together with Murray Gell-Mann and Harald Fritzsch, Leutwyler was crucially involved in establishing quantum chromodynamics (QCD) as the fundamental theory of strong interactions.[2] Together with Jürg Gasser he performed influential work on chiral perturbation theory,[3][4] an effective field theory describing QCD at low energies, including the Gasser-Leutwyler coefficients of the effective Lagrangian and the determination of current quark masses.
University of BernQuantum chromodynamicsChiral perturbation theoryHumboldt AwardPomeranchuk PrizeSakurai PrizeTheoretical physicsDoctoral advisorJohn R. Klauderparticle physicsstrong interactionsquantum field theoryGymnasiumPrincetonBell LaboratorieshabilitationCaltechPasadenaMurray Gell-MannHarald Fritzscheffective field theorycurrent quarkhonorary doctorate Johannes Gutenberg University MainzBibcode