Calculates mass and width of T_ccbar(4020) modeled as unstable D* Dbar* molecular state above threshold using developed Bethe-Salpeter theory, finding consistency with experiment.
We emphasize that the kernel V is defined in two-body channel so V is not complete interaction
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Mass and width of $T_{c\bar c}(4020)$ in the developed Bethe-Salpeter theory
Calculates mass and width of T_ccbar(4020) modeled as unstable D* Dbar* molecular state above threshold using developed Bethe-Salpeter theory, finding consistency with experiment.