英和和英

発音

IPA: /ˈfæmɪlɒn/

名詞

familon (plural familons)

1. (physics, particle physics) A hypothetical Nambu–Goldstone boson arising from the spontaneous breaking of a global family symmetry that distinguishes between generations of quarks and leptons.
   • 1983 November, S. P. Rosen, ELECTROWEAK INTERACTIONS AND BEYOND, in Proceedings of the Third LAMPF II Workshop, volume 2, page 1015:

     It could be the axion associated with the Peccei-Quinn symmetry for strong CP invariance, or it could be the "familon'", a Goldstone boson that is associated with family symmetries and was discussed by Wilczek at the TSIMESS Workshop at Santa Cruz.

   • 1984 April 30, Energy Research Abstracts, volume 9, number 8, Technical Information Center, U. S. Department of Energy, page 2045:

     For massive neutrinos that can decay by emission of a familon (f), a flavor-changing axion, the upper bound on the cosmic energy density of the decay products yields (1) an upper bound on the familon decay constant, and consequently (2) a lower bound on other f emission rates.

   • 2019, Benjamin Wallisch, Cosmological Probes of Light Relics (Springer Theses), Springer Nature, page 90:

     Below the EWSB scale, the leading coupling of the familon to fermions becomes marginal after replacing the Higgs in (4.13) with its vacuum expectation value.