The bound and resonant states of D^(*)D^(*) and D^(*)D^(*) with the complex scaling method

2025/03/07 by Lu, Jia-Liang, Song, Mao, Wang, Peng +3 · 2 citations
#FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph)

paper · doi:10.48550/arxiv.2503.05131

Abstract

We perform a systematic study of the possible molecular states composed of a pair of heavy mesons such as D^(*)D^(*), D^(*)D^(*) in the framework of the one-boson-exchange model. The exchanged bosons include the pseudoscalar, scalar and vector mesons(π, σ, ρ, ω). We use the Bonn approximation to get the interaction potential of one-boson-exchange model, then apply the complex scaling method to calculate the bound and resonant states. The results indicate that the D^(*)D^(*) and D^(*)D^(*) system can not only form several bound states, but also a P-wave resonant state. The hadron molecular state model can explain the structure of T_cc⁺ as a bound state DD^* with quantum number I(J^P) = 0(1⁺). In addition, we also discovered other bound and resonant states, which have the potential to be observed experimentally.

Cited by

• Production mechanism of doubly charmed exotic mesons T_cc
• Double-bottom centrifugal-barrier molecules dancing with four quarks

Related

• Role of the short-range dynamics in the formation of D^(*) D^(*)/B^(*) B^(*) hadronic molecules
• Dynamical study of D^*DK and D^*D D systems at quark level
• Exploring bottom-charmed molecular tetraquarks with the complex scaling method
• Pole trajectories from S- and P-wave DD^* interactions
• Study of possible DND^* bound states