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Toichiro Kinoshita

Goldwin Smith Professor of Physics, Emeritus


Educational Background

B.S., 1947, Tokyo University. Ph.D., 1952, Tokyo University. Member, Institute for Advanced Study, Princeton, 1952-54. Postdoctoral Fellow, Columbia University, 1954-55. Research Associate, Cornell University, 1955-58. Assistant Professor, Physics, Cornell University, 1958-60. Associate Professor, Physics, Cornell University, 1960-63. Professor, Physics, Cornell University, 1963-1992. Goldwin Smith Professor, Physics, Cornell University, 1992-95. Goldwin Smith Professor of Physics, Emeritus, Cornell University, 1995-present. Ford Foundation Fellow, CERN, 1962-63. Visiting appointments include Tokyo University, Japan; CERN, Geneva, Switzerland; National Laboratory of High Energy Physics (KEK), Japan. John Simon Guggenheim Memorial Fellow, 1973-74. APS J.J. Sakurai Prize, 1990. SUN-AMCO Medal, International Union of Pure and Applied Physics, 1998. Gian Carlo Wick Gold Medal, 2010. Fellow, American Physical Society. Fellow, American Association for the Advancement of Sciences. Member, National Academy of Sciences.


Test of quantum field theory, particularly high precision test of quantum electrodynamics and the Standard Model; making use of simple systems such as the anomalous magnetic moments of the electron and muon, and the hyperfine structure of the muonium


  • Physics


At present the tenth-order QED correction term to the anomalous magnetic moment of the electron is being evaluated. When completed it will enable us to determine the intrinsic magnetic property of the electron to a precision exceeding 1 part in 10 billion. As a byproduct it will provide by far the most precise value of the fine structure constant, one of the most important constants of the Nature, ever measured.