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Chiral structure of vector and axial-vector tetraquark currents

  • Hua-Xing ChenEmail author
Regular Article - Theoretical Physics

Abstract

We investigate the chiral structure of local vector and axial-vector tetraquark currents, and study their chiral transformation properties. We consider the charge-conjugation parity and classify all the isovector vector and axial-vector local tetraquark currents of quantum numbers I G J PC =11−+, I G J PC =1+1−−, I G J PC =11++ and I G J PC =1+1+−. We find that there is a one to one correspondence among them. Using these currents, we perform QCD sum rule analyses. Our results suggest that there is a missing b 1 state having I G J PC =1+1+− and a mass around 1.47–1.66 GeV.

Keywords

Operator Product Expansion Chiral Multiplet Chiral Structure Quark Content Tetraquark State 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Notes

Acknowledgements

This work is supported by the National Natural Science Foundation of China under Grant No. 11205011, and the Fundamental Research Funds for the Central Universities.

Supplementary material

10052_2013_2628_MOESM1_ESM.pdf (560 kb)
(PDF 559 kB)

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Copyright information

© Springer-Verlag Berlin Heidelberg and Società Italiana di Fisica 2013

Authors and Affiliations

  1. 1.School of Physics and Nuclear Energy Engineering and International Research Center for Nuclei and Particles in the CosmosBeihang UniversityBeijingChina

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