- psi particle
- noun Date: 1974 J/psi particle
New Collegiate Dictionary. 2001.
psi particle
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psi particle — n. Particle Physics J PARTICLE … English World dictionary
psi particle — noun a neutral meson with a large mass • Syn: ↑J particle • Hypernyms: ↑meson, ↑mesotron * * * noun see psi II * * * /suy, psuy/, Physics. 1. any of a family of mesons consisting of a charmed … Useful english dictionary
psi particle — /suy, psuy/, Physics. 1. any of a family of mesons consisting of a charmed quark and a charmed antiquark. 2. an early name for the J/psi particle. [1970 75] * * * … Universalium
psi particle — /ˈsaɪ patəkəl/ (say suy pahtuhkuhl) noun a type of meson characterised by charm (charm1 def. 9). Also, J particle. {psi (def. 1) + particle (def. 2) …
j/psi particle — ˈjāˈsī noun Usage: usually capitalized J : an unstable neutral fundamental particle of the meson family that has a mass about 6000 times the mass of an electron, has an unusually long lifetime, and is thought to consist of a charmed quark and… … Useful english dictionary
J/psi particle — /jay suy , psuy /, Physics. the lightest of the psi particles, the first particle to be discovered that contains a charmed quark. [1975 80; see J PARTICLE, PSI PARTICLE] * * * ▪ subatomic particle type of meson consisting of a charmed quark … Universalium
J/psi particle — 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 … New Collegiate Dictionary
psi|on — «SY on, PSEE », noun. any one of a group of elementary particles related to and including the psi particle: »“Psions”…are thought to possess charm as a hidden property (New York Times). ╂[< psi (particle) + on] … Useful english dictionary
J/psi particle — noun a subatomic particle with an unusually long lifetime and a large mass; a bound state of a charm quark and a anti charm quark Syn: J/psi meson, J/ψ particle … Wiktionary
Psi — may refer to:As a word* Psi (Greek) (Ψ, ψ) a letter of the Greek alphabet * Psi (Cyrillic) (Ѱ, ѱ), a letter of the early Cyrillic alphabet, adopted from Greek * Psi (instant messaging client), a popular Jabber client program * Psi… … Wikipedia
