New type of matter discovered..? - 3 views
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johannessimon81 on 17 Jun 13Scientists may have discovered a 4-quark particle... -
Thijs Versloot on 17 Jun 13A combination of two quark-antiquark pairs could be possible, maybe strongly interacting if they are all of similar types (charm and anti-charm in this case) or it may be via gluon exchange by the strong force.. Intriguing...