Analysis of X(1576) as a Tetraquark State with the QCD Sum Rules
WANG Zhi-Gang1, WAN Shao-Long²
¹Department of Physics, North China Electric Power University, Baoding 071003
²Department of Modern Physics, University of Science and Technology of China, Hefei 230026
Analysis of X(1576) as a Tetraquark State with the QCD Sum Rules
WANG Zhi-Gang1;WAN Shao-Long²
¹Department of Physics, North China Electric Power University, Baoding 071003
²Department of Modern Physics, University of Science and Technology of China, Hefei 230026
Abstract： We take the viewpoint that X(1576) is the tetraquark state which consists of a scalar diquark and an anti-scalar-diquark in relative P-wave, and calculate its mass in the framework of the QCD sum rule approach. The numerical value of the mass mx=(1.66±0.14) GeV is consistent with the experimental data. There might be some tetraquark components in the vector meson X(1576).
WANG Zhi-Gang;WAN Shao-Long⊃. Analysis of X(1576) as a Tetraquark State with the QCD Sum Rules[J]. 中国物理快报, 2006, 23(12): 3208-3210.
WANG Zhi-Gang, WAN Shao-Long&sup,. Analysis of X(1576) as a Tetraquark State with the QCD Sum Rules. Chin. Phys. Lett., 2006, 23(12): 3208-3210.
2006, Vol. 23 
