The hidden charm decay of X(3872),Y(3940) and final state interaction effects

2006/10/31 by Xiang Liu, Bo Zhang, Shi-Lin Zhu · 4 citations
Physics and Astronomy · #Charm (quantum number) #Nuclear physics research studies #Particle physics #Particle physics theoretical and experimental studies #Philosophy #Physics #Quantum Chromodynamics and Particle Interactions #Scroll #Theology #hep-ex #hep-ph

paper · pdf · doi:10.1016/j.physletb.2006.12.031

published as Phys.Lett.B645:185-188,2007 · 5 pages, 3 figures, 1 table. Version to appear in Physics Letters B

arxiv created 2006/12/16 · openalex publication_date 2006/12/21 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05

Abstract

We investigate whether the final state interaction (FSI) effect plays a significant role in the large hidden charm decay width of X(3872) and Y(3940) using a model. Our numerical result suggests (1) the FSI contribution to X(3872)→ J/ψρ is tiny; (2) Γ[ Y(3940)→ DD^*+h.c.→ J/ψω] from FSI is around several keV, far less than Belle's experimental value 7 MeV.

Citations

• Observation and Properties of theX(3872)Decaying toJ/ψπ+π−inpp¯Collisions ats=1.96 TeV
• J/ψabsorption byπandρmesons in a meson exchange model with anomalous parity interactions
• QCD Multipole Expansion and Hadronic Transitions in Heavy Quarkonium Systems
• On the hidden charm state at 3872 MeV
• Cancellations in two-step OZI-violating transitions
• Study of theB−→J/ψK−π+π−decay and measurement of theB−→X(3872)K−branching fraction
• Observation of a New Narrow Charmonium State in Exclusive B+-->K+ pi+pi- J/psi Decays

Cited by

• Understanding the branching ratios ofχc1→ϕϕ,ωω,ωϕobserved at BES-III
• Hidden-charm decays of X(3915) and Z(3930) as the P-wave charmonia
• Scalar resonance contributions to the dipion transition rates ofΥ(4S,5S)in the rescattering model
• Decays of the X(3872) and theχc1(2P)charmonium state