Systematic studies of DDKK and DDKK four-hadron molecules

2023/12/21 by Pan, Ya-Wen, Liu, Ming-Zhu, Lu, Jun-Xu +1
#FOS: Physical sciences #High Energy Physics - Experiment (hep-ex) #High Energy Physics - Phenomenology (hep-ph)

paper · doi:10.48550/arxiv.2312.13801

Abstract

Assuming that D_s0^*(2317) is a DK molecular state with a binding energy of 45 MeV, we investigate the existence of four-hadron molecules, DDKK and D\BarDK\BarK, with the Gaussian expansion method. Their binding energies are 138∼155 MeV and 123∼163 MeV below the mass thresholds of DDKK and D\BarDK\BarK. The D\BarDK\BarK state has a decay width of 36∼54 MeV due to the complex K\BarK interaction. Further theoretical studies of and experimental searches for such four-hadron molecules can help deepen the understanding of the nonperturbative strong interaction in a nontrivial way.

Related

• Dynamical study of D^*DK and D^*D D systems at quark level
• Systematic study of D_s0^*(2317) in quark models
• Probing the structure of the D_{s 0}^*(2317) and X(3872) states through correlation functions
• Implication of the existence of J^PC=0^-- D_sDK bound state on nature of D_s0^*(2317) and new configuration of exotic state
• Effect of a repulsive three-body interaction on the DD^(*)K molecule