Jun 5 – 9, 2023
Genova, Italy
Europe/Rome timezone

Reaction of $T_{cc}$ states of $D^* D^*$ and $D^*_s D^*$ molecular nature

Jun 8, 2023, 3:30 PM
DAD - Room 4H (Genova, Italy)

DAD - Room 4H

Genova, Italy

Contributed Exotic hadrons and candidates Exotic hadrons and candidates


Lianrong DAI


We extend the theoretical framework used of describe the $T_{cc}$ state as a molecular state of $D^* D$ and make predictions for the $D^*D^*$ and $D^*_s D^*$ systems, finding that they lead to bound states only in the $J^P=1^+$ channel. Using input needed to describe the $T_{cc}$ state, basically one parameter to regularize the loops of the Bethe-Salpeter equation, we find bound states with bindings of the order of the MeV and similar widths for $D^*D^*$ system, while the $D^{*}_s D^{*}$ system develops a strong cusp around threshold.

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