Pentaquark

Subatomic Particle with Five Quarks

A pentaquark is a subatomic particle, consisting of four quarks and one antiquark bound together. Evidence for the existence of pentaquarks has been found in decays of the bottom lambda baryon. As quarks have a baryon number of ⁠++1/3⁠, and antiquarks of ⁠−+1/3⁠, the pentaquark would have a total baryon number of 1, and thus would be a baryon.

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