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Definition of J/psi particle
1. Noun. (particles) a subatomic particle with an unusually long lifetime and a large mass; a bound state of a charm quark and a anti-charm quark ¹
¹ Source: wiktionary.com
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1. Noun. (particles) a subatomic particle with an unusually long lifetime and a large mass; a bound state of a charm quark and a anti-charm quark ¹
¹ Source: wiktionary.com