Quarks in six-packs: Exotic Particle Confirmed

For decades, physicists have searched in vain for exotic bound states comprising more than three quarks. Experiments performed at Jülich's accelerator COSY have now shown that, in fact, such complex particles do exist in nature. This discovery by the WASA-at-COSY collaboration has been published in the journal Physical Review Letters. The measurements confirm results from 2011, when the more than 120 scientists from eight countries discovered for the first time strong indications for the existe...