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Newly observed resonance X(4685) : diquark-antidiquark picture

2021/03/09 by A. Türkan, J. Y. Süngü, Türkan, A. +3
Materials Science · Mathematics · Physics and Astronomy · #Advanced Topics in Algebra #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #Magnetism in coordination complexes #Nonlinear Waves and Solitons

paper · pdf · doi:10.48550/arxiv.2103.05515

openalex publication_date 2021/03/09 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

In this work, the mass and pole residue of X(4685) state with spin-parity JP=1+ are computed by the QCD sum rule approaches up to operator dimension seven based on the diquark-antidiquark configuration. For its mass we get m_Xcs= 4607+36-22 MeV and pole residue λ_Xcs= 6.19+0.32-0.24× 10-2~GeV5, which may be checked via other nonperturbative approaches as well as future experiments. As a by product, the mass of the hidden-bottom partner state of the X(4685) is extracted to be both around m_Xbs= (10604-10924) MeV and λ_Xbs= (42.2-53.7)× 10-2~GeV5, which can be searched in the Υϕ invariant mass distribution.

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