English Dictionary

lepton

IPA（発音記号）

/ˈlɛptɒn/

名詞

小辞

(particle physics) An elementary particle that has a spin of 1/2 (i.e., is a fermion) and does not interact via the strong nuclear force; examples include the electron, the muon, the neutrino and the tauon.

日本語の意味

（素粒子物理学）スピンが½で、強い核力と相互作用しない素粒子。例えば、電子、ミュー粒子、ニュートリノ、タウ粒子などが含まれる。

The lepton observed in the experiment behaved like an elementary particle with spin 1, prompting theorists to revise their calculations.

実験で観測されたスピン1の素粒子は予想外の振る舞いを示し、理論家たちに計算の見直しを促した。

意味（1）

(particle physics) An elementary particle that has a spin of 1/2 (i.e., is a fermion) and does not interact via the strong nuclear force; examples include the electron, the muon, the neutrino and the tauon.

In the present paper we deal with the second order radiative correction to the beta disintegration of nucleon, assuming the Fermi's interaction between necleon and lepton fields, and show that there appears such an ultraviolet divergence as can not be removed by the procedure of renormalization of mass and coupling constant, so far as a single type of coupling is assumed for the decay Hamiltonian.

leptons （ plural ）