Akademik Veri Yönetim Sistemi
Physical Review D, cilt.107, sa.9, 2023 (SCI-Expanded, Scopus)
The doubly charged scalar resonance Tcs0a(2900)++ is studied in the context of the hadronic molecule model. We consider Tcs0a(2900)++ as a molecule M=D∗+K∗+ composed of vector mesons and calculate its mass, current coupling, and full width. The spectroscopic parameters of M, i.e., its mass and current coupling, are found by means of the QCD two-point sum rule method by taking into account vacuum expectation values of quark, gluon, and mixed operators up to dimension 10. The width of the molecule M is evaluated through the calculations of the partial widths of the decay channels M→Ds+π+, M→Ds∗+ρ+, and M→D∗+K∗+. Partial widths of these processes are determined by strong couplings g1, g2, and g3 of particles at vertices MDs+π+, MDs∗+ρ+, and MD∗+K∗+, respectively. We calculate the couplings gi by employing the QCD light-cone sum rule approach and technical tools of the soft-meson approximation. Predictions obtained for the mass m=(2924±107) MeV and width Γ=(123±25) MeV of the hadronic molecule M allow us to consider it as a possible candidate of the resonance Tcs0a(2900)++.