How to understand the underlying structures of X (4140), X (4274), X (4500) and X (4700)

2016/07/05 by Xiao-Hai Liu · 1 citation
Physics and Astronomy · #Black Holes and Theoretical Physics #Crystallography #Particle physics theoretical and experimental studies #Physics #Quantum Chromodynamics and Particle Interactions #Theoretical physics #hep-ph

paper · pdf · doi:10.1016/j.physletb.2017.01.008

14 pages, 5 figures, 1 table

arxiv created 2016/07/05 · openalex created_date 2016/07/22 · openalex publication_date 2017/01/11 · arxiv updated 2017/01/18 · openalex updated_date 2026/08/05

Abstract

We investigate the possible rescattering effects which may contribute to the process B⁺→ J/ψφ K⁺. It is shown that the D_s^*+D_s^- rescattering via the open-charmed meson loops, and ψ^′ φ rescattering via the ψ^′ K₁ loops may simulate the structures of X(4140) and X(4700), respectively. However, if the quantum numbers of X(4274) (X(4500)) are 1⁺⁺ (0⁺⁺), it is hard to to ascribe the observation of X(4274) and X(4500) to the P-wave threshold rescattering effects, which implies that X(4274) and X(4500) could be genuine resonances. We also suggest that X(4274) may be the conventional orbitally excited state χ_c1(3P).

Citations

• Decay constants ofP- andD-wave heavy-light mesons
• Singularities in the physical region
• Nonfactorizable contributions inBdecays to charmonium: The case ofB−→K−hc
• Isospin breaking andf0(980)-a0(980)mixing in theη(1405)→π0f0(980)reaction
• The hidden-charm pentaquark and tetraquark states
• Big-Bang Nucleosynthesis

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