摘要
In this article,we test the nature of X(3872),which is assumed to be a P-wave [cq]-scalar-diquark [cq]axial-vector-antidiquark tetraquark state with JP= 2-.The interpolating current representing the JP= 2-state is proposed.Technically,contributions of the operators up to dimension six are included in the operator product expansion.The mass obtained for such state is m2-=(4.38 ± 0.15) GeV.We conclude that it is impossible to describe the X(3872) structure as J P = 2-tetraquark state.
In this article, we test the nature of X（3872）, which is assumed to be a P-wave [cq]-scalar-diquark [cq]- axial-vector-antidiquark tetraquark state with JP = 2^-. The interpolating current representing the JP = 2^- state is proposed. Technically, contributions of the operators up to dimension six are included in the operator product expansion. The mass obtained for such state is m2- = （4.38±0.15） GeV. We conclude that it is impossible to describe the X（3872） structure as JV = 2^- tetraauark state.
基金
Supported by the National Natural Science Foundation of China under Grant Nos. 10975184,11047117,11105222,and 11105223
