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New narrow resonance in the $e^+ e^- \to \phi\eta$ data by Belle collaboration

High Energy Physics - Phenomenology 2023-10-25 v2 High Energy Physics - Experiment
Authors: Peter Lichard
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Abstract

Fitting the recent e+e−\raϕ ηe^+e^-\ra\phi\,\eta data by the Belle collaboration with a theoretical formula reveals, besides the dominant ϕ(1680)\phi(1680) resonance, two narrow resonances: expected ϕ(2170)\phi(2170) resonance and an unexpected resonance with the mass of about 1851 MeV. Close proximity to the X(1835)X(1835) resonance suggests that the new resonance may be interpreted as the ppˉp \bar p baryonium in an excited state. Follow-up analysis found the same resonance also in e+e−\raω ηe^+e^-\ra\omega\,\eta data by CMD-3 experiment.

Keywords

electron-positron annihilation cross sections charmonium and exotic meson decays lambda(1405) resonance photoproduction

Cite

@article{arxiv.2309.14520,
  title  = {New narrow resonance in the $e^+ e^- \to \phi\eta$ data by Belle collaboration},
  author = {Peter Lichard},
  journal= {arXiv preprint arXiv:2309.14520},
  year   = {2023}
}

Comments

3 pages, 3 figures, Statistical significance of the new resonance estimated

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