pentaquark

名词 n.
中文释义
英 /ˈpɛntəkwɔːk/|/-kwɑːk/    美 /ˈpɛntəkwɔɹk/|/-kwɑɹk/

英文释义

名词 n.
  1. 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). particle
    — 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.

词形变化

pentaquarks plural

词源

Etymology tree
Proto-Indo-European *pénkʷe
Proto-Hellenic *pénkʷe
Ancient Greek πέντε (pénte)
Ancient Greek πεντᾰ- (pentă-)lbor.
English penta-
English quark
English pentaquark
From penta- + quark.
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