Light four-quark states and QCD sum rule

The relations among four-quark states, diquarks and QCD sum rules are discussed. The situation of the existing, but incomplete studies of four-quark states with QCD sum rules is analyzed. Masses of some diquark clusters were attempted to be determined by QCD sum rules, and masses of some light tetraquark states were obtained in terms of the diquarks.

作 者： ZHANG Ai-Lin   作者單位： Department of Physics, Shanghai University, Shanghai 200444, China  刊 名： 中國物理C（英文版）  ISTIC 英文刊名： CHINESE PHYSICS　C  年，卷(期)： 2009 33(6)  分類號(hào)： O4  關(guān)鍵詞： four-quark state   sum rule   diquark  

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