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| Paper IPM / Physic / 15264 |
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| Abstract: | |||||||||
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The mass and coupling of the doubly charmed pseudoscalar
diquark-antidiquark states Tcc;―s ―s++ and Tcc;―d―s++ that bear two units of the electric charge are calculated by
means of QCD two-point sum rule method. Computations are carried out by
taking into account vacuum condensates up to and including terms of tenth
dimension. The dominant S-wave decays of these tetraquarks to a pair of
conventional Ds+Ds0∗+(2317) and D+Ds0∗+(2317) mesons are explored using QCD three-point sum rule approach, and
their widths are found. The obtained results for the mass and width of these
states mT=(4410 ±120) MeV, Γ = (109.8 ±30.8) MeV and ~mT=(4270±115 ) MeV, ~Γ=(52.6 ±14.8) MeV may be useful in
experimental studies of exotic resonances.
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