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Counting similarities between tetraquark and mesonic/gluonic operators

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Abstract.

After the study of the preclusion of exotic meson states in large- \(N_{c}\) limit QCD, combining Weinberg’s opposite proposal, we get different counting orders for a tetraquark operator to create or destroy a one-tetraquark state. Meanwhile, by comparing the tetraquark operator with the mesonic and gluonic operators, we find that tetraquark operators are similar to mesonic and gluonic operators in the counting. Furthermore, we find a mixing of different kinds of operators.

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Authors and Affiliations

  1. Institute of Theoretical Physics, Beijing University of Technology, 100124, Beijing, China

    Ming Chen & Yong-Chang Huang

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  1. Ming Chen
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  2. Yong-Chang Huang
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Correspondence to Ming Chen.

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Communicated by S. Hands

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Chen, M., Huang, YC. Counting similarities between tetraquark and mesonic/gluonic operators. Eur. Phys. J. A 52, 329 (2016). https://doi.org/10.1140/epja/i2016-16329-1

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  • DOI: https://doi.org/10.1140/epja/i2016-16329-1

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