| purity | |||
| 100% | PENTAQUARKS | Positively Extending 'Normal' Tetrads, Anti-Quark Units Are Really Kinda Strange | 
                Angela Brett (according to http://www.phy.ohiou.edu/~hicks/thplus/pentaquark.html For the exotic pentaquark under study here, the valence quarks consist of two up quarks, two down quarks, and one strange antiquark) Science:Physics:Particles  |