Definition of "xi"
- noun
The name for the 14th letter of Classical and Modern Greek. The 15th in Ancient and Old Greek.
Either of a pair of hyperons having spin 1/2, which decay into a lambda particle and a pion.
- Sources
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The name for the 14th letter of Classical and Modern Greek. The 15th in Ancient and Old Greek.
Either of a pair of hyperons having spin 1/2, which decay into a lambda particle and a pion.