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 E-Mail IMAGE: When a proton collides with a proton, the gluon emitted by one of the valence quarks can interact with a virtual quark from the the quark-antiquark pair inside the other. view more  Credit: Source: IFJ PAN / Dual Color Inside each proton or neutron there are three quarks bound by gluons. Until now, it has often been assumed that two of them form a stable pair known as a diquark. It seems, however, that it s the end of the road for the diquarks in physics. This is one of the conclusions of the new model of proton-proton or proton-nucleus collisions, which takes into account the interactions of gluons with the sea of virtual quarks and antiquarks.

Marian smoluchowski krakAndrzej rybickiMarek jezabekNational research centreResearch consortiumEuropean commissionInstitute of nuclear physicsGluon exchange modelAcademy of sciencesHenryk niewodniczanski institute of nuclear physicsCyclotron centre bronowiceHr excellence in researchNuclear physicsPolish academyDual parton modelHenryk niewodniczanski institute