Speaker
Albert Feijoo Aliau
(Instituto de Física Corpuscular (IFIC), CSIC-UV)
Description
We study the exotic doubly charmed $D^* D$ system providing a natural explanation for the $T_{cc}^+$ recently seen by LHCb, in terms of $D^{*+}D^0$ and $D^{*0} D^+$ with isospin $I=0$. The width is evaluated accurately based on the decay widths of the $D^*$ states. The $D^0 D^0 \pi^+$ decay mode of the bound state formed is studied in detail, showing a narrow peak below the $D^{*+}D^0$ threshold and some strength above it, as observed in the experiment, supporting strongly the molecular picture of this state, the first example of a meson with two open charmed quarks. This study can be naturally extended to the bottom sector giving interesting features for the $B^*B(I=0)$ counterpart found there.
Primary author
Albert Feijoo Aliau
(Instituto de Física Corpuscular (IFIC), CSIC-UV)
