The constituent quark model: a status report
Tóm tắt
I review the status of the constituent quark model. I begin by showing that phenomenological heavy-quark potentials are in qualitative agreement with potentials calculated from first principles using the techniques of lattice QCD. I next argue that it is reasonable to extend the constituent quark model to light-quark systems where nonrelativistic approximations are no longer valid. We find that both mesons and baryons can be described in a «relativized» quark model which suggests a connection between the quark model and the fundamental theory, QCD. In the final section I review how the quark model is applied to multiquark systems. Using the example of six-quark systems it is seen that the qualitative features of nuclear physics can be derived from the quark model.
Tài liệu tham khảo
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