MAIN IMAGE pentaquark 2

Possible layout of the quarks in a pentaquark particle. They might be assembled into a meson (one quark and one antiquark) and a baryon (three quarks), loosely bound together. Credit@Daniel Dominguez/CERN

Possible layout of the quarks in a pentaquark particle. They might be assembled into a meson (one quark and one antiquark) and a baryon (three quarks), loosely bound together. Credit@Daniel Dominguez/CERN