Resonances in e⁺e⁻ annihilation near 2.2 GeV

Abstract

Using the initial-state radiation method, the e⁺e⁻ → K_SK_L cross section from 1.98 to 2.54 GeV is measured in a data sample of 469  fb⁻¹ collected with the BABAR detector. The results are used in conjunction with previous BABAR results for the e⁺e⁻ → K⁺K⁻, e⁺e⁻ → π⁺π⁻, e⁺e⁻ → π⁺π⁻η, and e⁺e⁻ → ω_(ππ) cross sections to investigate the nature of the resonance structure recently observed by the BESIII experiment in the e⁺e⁻ → K⁺K⁻ cross section.

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