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Definition of the upsilon particle in English English dictionary
- upsilon meson
- upsilon particle
- Any of a number of bound states of a heavy quark and its antiquark, especially that formed from a bottom quark and an anti-bottom quark
- upsilon particle
- An electrically neutral meson having a mass 18,513 times that of the electron and a mean lifetime of approximately 8.0 × 10- seconds
Related Terms
the upsilon particle
Hyphenation
the up·si·lon par·ti·clePronunciation
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