Hadrons made by diquark-antidiquark pairs(tetraquarks)are held together by QCD forces in an overall color singlet.As stated in the original proposals and similarly to baryons and qq mesons,tetraquarks form complete mu...
This project was supported by the National Nat-ural Science Foundation of China(11975033 and 12070131001);This project was also funded by the Deutsche Forschungsgemeinschaft(DFG,German Research Foundation,Project ID 196253076-TRR 110).
In this work,we investigate the SU(3)flavor symmetry,heavy quark spin symmetry and their breaking effects in the di-meson systems.We prove the existence of the[D_(s)(*)D_(s)(*)]^(0++),[D_(s)(*)D_(s)(*)]^(1++),and[D_(s...
Ⅰ. INTRODUCTION Lattice gauge theory provides a very convenient nonperturbative gauge invariant regularization scheme. The usually adopted action in the theory is of Wilson’s form. But actually the form of action is...
Ne’eman and Fairlie have recently attempted to embed the SU(2)×U(1) electro-weak group into a supersymmetric SU(2|1) gauge theory. Fairlie and others further extended the graded gauge fields over a space time manifo...