J/PSI PARTICLE


Meaning of J/PSI PARTICLE in English

transcription, транскрипция: [ ˌjā-ˈsī-, -ˈpsī- ]

noun

Date: 1977

: an unstable neutral fundamental particle of the meson group that has a mass about 6000 times the mass of an electron — called also J particle, J/psi, psi particle

Merriam-Webster's Collegiate English vocabulary.      Энциклопедический словарь английского языка Merriam Webster.