Speakur

Word Pronunciation & Dictionary

j/psi particle

/ˌdʒeɪ ˈsaɪ ˈpɑɹtɪkəl/

Word Rarity Rare

Frequency: Zipf frequency 3.31 in modern English

Syllables
J-ψ-par-ti-cle
IPA
/ˌdʒeɪ ˈsaɪ ˈpɑɹtɪkəl/
25
Scrabble Score
12
Letters
5
Syllables
10
Unique Chars

Meaning

noun

A subatomic particle with an unusually long lifetime (7.2 × 10⁻²¹ s) and a large mass (approx. 3.097 GeV/c²); a bound state of a charm quark and an anti-charm quark (the most common form of charmonium).

Example Sentences

Etymology

A compound of J, ψ (ps) (psi), and particle. The particle was discovered independently in 1974 by two research groups, leading to the "November Revolution" in particle physics. * The group led by Samuel Ting at Brookhaven National Laboratory proposed the name J, reputedly because the shape of the Chinese character for Ting (丁) resembles a J, though Ting also cited the symbol for electromagnetic current, j_μ(x), as a reason. * The group led by Burton Richter at SLAC proposed the name ψ (psi). Richter initially preferred "SP" (for the SPEAR accelerator), but chose "psi" as it contained "SP" in reverse order and was the only remaining Greek letter deemed suitable; coincidently, the particle's decay pattern in spark chambers resembled the letter ψ. The compromise name J/ψ was adopted to acknowledge both discoveries.

Regional Pronunciation

  • American English: /ˌdʒeɪ ˈsaɪ ˈpɑɹtɪkəl/
  • British English: /ˌdʒeɪ ˈsaɪ ˈpɑːtɪkl̩/

Inflected Forms

J/ψ particle (canonical) J/psi particles (plural) J/ψ meson (alternative) J/psi meson (alternative) J/ψ particle (alternative) J particle (alternative) psion (alternative)

Synonyms

J/psi meson psion

Homonyms

j/ψ particle

Rhymes With

j particle j/ψ particle

Questions

How do you pronounce j/psi particle?
The recorded pronunciation is /ˌdʒeɪ ˈsaɪ ˈpɑɹtɪkəl/.
What does j/psi particle mean?
A subatomic particle with an unusually long lifetime (7.2 × 10⁻²¹ s) and a large mass (approx. 3.097 GeV/c²); a bound state of a charm quark and an anti-charm quark (the most common form of charmonium).
Where does j/psi particle come from?
A compound of J, ψ (ps) (psi), and particle. The particle was discovered independently in 1974 by two research groups, leading to the "November Revolution" in particle physics. * The group led by Samuel Ting at Brookhaven National Laboratory proposed the name J, reputedly because the shape of the Chinese character for Ting (丁) resembles a J, though Ting also cited the symbol for electromagnetic current, j_μ(x), as a reason. * The group led by Burton Richter at SLAC proposed the name ψ (psi). Richter initially preferred "SP" (for the SPEAR accelerator), but chose "psi" as it contained "SP" in reverse order and was the only remaining Greek letter deemed suitable; coincidently, the particle's decay pattern in spark chambers resembled the letter ψ. The compromise name J/ψ was adopted to acknowledge both discoveries.

How to pronounce j/psi particle

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