Exploring the nature of Y(4230) and Y(4360) in B decays

2024/09/10 by Ming-Zhu Liu, Qi Wu, Liu, Ming-Zhu +1
Physics and Astronomy · Engineering · #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #Particle Accelerators and Free-Electron Lasers

paper · pdf · doi:10.48550/arxiv.2409.06539

Abstract

Vector charmonium states can be directly produced in the e⁺e^- annihilation process. Among them, Y(4230) and Y(4360) splitting from the previously discovered Y(4260) are not easily arranged into the conventional charmonium spectrum, while recent studies have indicated that they have strong couplings to DD₁ and D^*D₁. In this work, we investigate the production of Y(4230) and Y(4360) as the heavy-quark spin symmetry doublet hadronic molecules of DD₁ and D^*D₁ in B decays via the triangle diagram mechanism. In particular, we propose that the decay constants of Y(4230) and Y(4360) extracted in B decays are useful for clarifying their nature.

Related

• Productions of X(3872)/Z_c(3900) and X₂(4013)/Z_c(4020) in Y(4220) and Y(4360) decays
• Investigations on the charmless decays of Y(4260)
• Strong decays of charmonium-like state Y(4230)
• Light-quark components analysis and the nature of the Y(4260)
• A short review of the vector charmonium-like state ψ(4230)