Speaker
Description
This talk is based on [Eur.Phys.J.C 84 (2024) 8, 800]. A novel approach is proposed to probe the nature of the double charm tetraquark through the prompt production asymmetry between $T_{\bar{c}\bar{c}}^-$ and $T_{cc}^+$ in pp collisions. When comparing the compact tetraquark picture and hadronic molecular picture, we find that the former one exhibits a significantly larger production asymmetry, enabling the unambiguous determination of the tetraquark’s internal structure. Additionally, distinctive differences in the transverse momentum and rapidity distributions of $T_{\bar{c}\bar{c}}^-$ and $T_{cc}^+$ cross sections emerge, particularly at $p_T$ ≈ 2 GeV and y ≈ ±6 at a center-of-mass energy of 14 TeV. This work can be extended to the exploration of other double heavy tetraquark candidates, offering a versatile approach to advance our understanding of exotic hadrons.
