Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2009-05-30
Phys.Rev.D80:056004,2009
Physics
High Energy Physics
High Energy Physics - Phenomenology
22 pages, 36 eps figures; revised version accepted for publication in Phys. Rev. D
Scientific paper
10.1103/PhysRevD.80.056004
Masses for $\{Q\bar{q}\}\{\bar{Q}^{(')}q\}$ molecular states are systematically studied in QCD sum rules. The interpolating currents representing the related molecular states are proposed. Technically, contributions of the operators up to dimension six are included in operator product expansion (OPE). Mass spectra for molecular states with $\{Q\bar{q}\}\{\bar{Q}^{(')}q\}$ configurations are obtained.
Huang Ming-Qiu
Zhang Jian-Rong
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