Evaluation of the θ_K and the Mixing angle θ_h1

2019/11/16 by Ya Gao, Gao, Ya, Yateng Zhang +9
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Experiment (hep-ex) #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.1911.06967

openalex publication_date 2019/11/16 · openalex created_date 2024/04/11 · openalex updated_date 2026/07/28

Abstract

The θ_K has been re-evaluated via mass relations and latest experimental results, meanwhile, the M_K_1B also be obtained. Based on the singlet-octet mixing model and quark-flavor mixing model, the θ_h1 has been recalculated with a modified formula, by inputting M_K_1B instead of θ_K. The values are calculated to be |θ_K| = (42.6 ± 2.2)^ ∘ , M_K_1B = 1333.9 ± 4.6 \rmMeV/c² and θ_h1 = 29.5± 2.0^∘. Using these calculations as input, we predict that the branching fraction of J/ψ→ η'(η)h₁(1170) is about one order higher than that of J/ψ→ η'(η)h₁(1415), which can be measured in future experiments to test the validity of these two models.

Citations

• Review of Multibody Charm Analyses

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