One explanation for the exotic state Y(4260)

2005/10/31 by Cong‐Feng Qiao, Cong-Feng Qiao · 4 citations
Physics and Astronomy · #Atomic and Subatomic Physics Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ph

paper · pdf · doi:10.1016/j.physletb.2006.06.038

published as Phys.Lett.B639:263-265,2006 · five text pages, one ps figure. Version to appear in PLB

arxiv created 2006/06/21 · openalex publication_date 2006/07/04 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28

Abstract

In this Letter we interpret the Y(4260), a state recently discovered by the BaBar Collaboration that has a mass within the range of conventional charmonium states, as having a molecular-state structure. In our scheme this molecular-like state is not constructed out of two-quark mesons, but rather out of baryons, i.e., the Y(4260) is a baryonium state. With this interpretation, the unusual measured properties of the Y(4260) are easily understood and some further peculiar decay characteristics are predicted.

Citations

• The possible interpretations of Y(4260)
• Big Bang Nucleosynthesis (in "The Review of Particle Properties" 2004)

Cited by

• Exotic hadrons with heavy flavors: X, Y, Z, and related states
• Baryonium study in heavy baryon chiral perturbation theory
• New Charmonium-like States
• Dipionic transitions of Y(4500) to J/ψ