The Y(4230) as a D₁ D molecule

2023/09/21 by Leon von Detten, C. Hanhart, von Detten, Leon +3
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions

paper · pdf · doi:10.48550/arxiv.2309.11970

openalex publication_date 2023/09/21 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/01

Abstract

We show that the currently available data are consistent with Y(4230) being a D₁ D hadronic molecule. By a simultaneous fit to data from e⁺ e^- → D⁰ D^{* -} π⁺, J/ψπ⁺ π^-, J/ψK⁺ K^-, h_c π⁺ π^-, J/ψη, χ_c0 ω, χ_c1(3872) γ and μ⁺ μ^-, we demonstrate that this single state can explain the experimental signals in the mass range from 4.2 to 4.35 \rmGeV.

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