2014/08/20 by Lu Zhao, Wei-Zhen Deng, Shi-Lin Zhu
Mathematics · Physics and Astronomy · #Algorithm #Charm (quantum number) #Cold Atom Physics and Bose-Einstein Condensates #Hadron #Mathematics #Particle physics #Physics #Physics of Superconductivity and Magnetism #Quantum Chromodynamics and Particle Interactions #Quantum mechanics #Spectrum (functional analysis) #State (computer science) #Tetraquark #hep-ex #hep-lat #hep-ph #nucl-th
paper · pdf · doi:10.1103/physrevd.90.094031
published as Phys. Rev. D90 (2014) 094031
arxiv created 2014/08/20 · openalex publication_date 2014/11/24 · arxiv updated 2014/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
Experimentally several charged axial-vector hidden-charm states were reported. Within the framework of the color-magnetic interaction, we have systematically considered the mass spectrum of the hidden-charm and hidden-bottom tetraquark states. It is impossible to accommodate all of the three charged states Zc(3900), Zc(4025), and Zc(4200) within the axial-vector tetraquark spectrum simultaneously. Not all of these three states are tetraquark candidates. Moreover, the eigenvector of the chromomagnetic interaction contains valuable information of the decay pattern of the tetraquark states. The dominant decay mode of the lowest axial-vector tetraquark state is J/\ensuremathψ\ensuremathπ while its D*D and D*D* modes are strongly suppressed, which is in contrast with the fact that the dominant decay mode of Zc(3900) and Zc(4025) is DD* and D*D*, respectively. We emphasize that all the available experimental information indicates that Zc(4200) is a very promising candidate of the lowest axial-vector hidden-charm tetraquark state.