Effects of Superheavy Quarks and Leptons in Low-Energy Weak Processes K_L→μμ^^-, K^+→π^+νν^^ - and K^0→K^^-^0

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概要

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• We investigate potentially important effects due to the existence of superheavy quarks and leptons of the sequential type in higher-order weak processes at low energies. The second-order ΔS≠0 neutral-current processes K_L→μμ^^-, K^+→π^+νν^^- and K_L-K_S mass difference are analysed allowing for fermions of masses comparable to or larger than the weak-boson mass in the Kobayashi-Maskawa scheme and in the general sequential scheme with an arbitrary number of generations. Possible connection between heavy-quark masses and light-heavy quark mixing are also examined. The requirement that the rare decay processes such as K_L→μμ^^- and K^+→π^+νν^^- be absent up to order αG_F yields a rather stringent bound on the magnitude of light-heavy quark mixing: Such mixing has to be less than m_W/m_<quark> times a factor much smaller than unity.

• 理論物理学刊行会の論文
• 1981-01-25

著者

• Inami T

  Department Of Physics Chuo University

• INAMI Takeo

  Research Institute for Fundamental Phisics, Kyoto University

• Inami Takeo

  Institute Of Physics University Of Tokyo

• Inami Takeo

  Institute Of Physics College Of General Education University Of Tokyo

• LIM C.S.

  Institute of Physics, University of Tokyo

• Lim C.s.

  Institute Of Physics University Of Tokyo

• INAMI Takeo

  Yukawa Institute for Theoretical Physics, Kyoto University : the Grant-in-Aid for Scientific Research, Priority Area 231 "Infinite Analysis", Japan Ministry of Education

• INAMI Takeo

  Institute of Physics, University of Tokyo

• INAMI Takeo

  Research Institute for Fundamental Physics, Kyoto University

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