Pentaquark

Quick meaning: Pentaquark is a noun meaning (particle physics) Any of a class of subatomic particles (previously hypothetical, since detected, subject to confirmation) consisting of a group of five quarks (compared to three quarks in normal baryons and two in mesons), or more specifically four quarks and one antiquark (symbol Θ).

Meaning

(particle physics) Any of a class of subatomic particles (previously hypothetical, since detected, subject to confirmation) consisting of a group of five quarks (compared to three quarks in normal baryons and two in mesons), or more specifically four quarks and one antiquark (symbol Θ).

Example Sentences

Evidence for and against the heavier pentaquark states, the #92;Xi(1862) and the #92;Theta⁰#95;c(3100) observed at CERN and at HERA, respectively, are also discussed. I conclude that the evidence against the latter two heavier pentaquark baryons is rapidly increasing making their existence highly questionable.

Word Forms

• pentaquarks

Related Words

Related dictionary entries include triquark, antidecuplet, triplet, pentachoron, pentaquadrupole, pentad.

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