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Analysis of the hidden-charm tetraquark molecule mass spectrum with the QCD sum rules

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arxiv 2012.11869 v2 pith:3YF3CWU2 submitted 2020-12-22 hep-ph

Zhi-Gang Wang This is my paper
classification hep-ph
keywords rulesstatestetraquarkhidden-charmmassmolecularspectrumstrange
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abstract

In this article, we investigate the mass spectrum of the ground state hidden-charm tetraquark molecular states without strange, with strange and with hidden-strange via the QCD sum rules in a comprehensive way and revisit the assignments of the $X$, $Y$, $Z$ states in the scenario of tetraquark molecular states consistently based on the QCD sum rules.

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  1. Determination of the $Z_c(3900)$ and the $Z_{cs}(3985)$ states from joint analysis of experimental and lattice data

    hep-ph 2026-04 unverdicted novelty 5.0 of 10

    Joint analysis of experimental and lattice data confirms Z_c(3900) and Z_cs(3985) as SU(3) flavor partners with pole masses (3879.6 ± 4.8) MeV and (3976.9 ± 5.1) MeV, half-widths (32.2 ± 4.7) MeV and (28.8 ± 5.9) MeV,...

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