Counting similarities between tetraquark and mesonic/gluonic operators

2015/08/24 by Ming Chen, Chen, Ming, Yong-Chang Huang +1
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #hep-ph

paper · pdf · doi:10.48550/arxiv.1508.05773

4 pages

arxiv created 2016/01/12 · arxiv updated 2016/01/13

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 an one-tetraquark state. Meanwhile, by comparing tetraquark operator with the mesonic and gluonic operators, we find that tetraquark operators are similar with mesonic and gluonic operators in the counting. Furthermore, we find a mixing of different kinds of operators.

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