English

Resonances in $e^+e^-$ annihilation near 2.2 GeV

High Energy Physics - Experiment 2020-02-04 v2

Abstract

Using the initial-state radiation method, the e+eKSKLe^+e^- \to K_S K_L cross section from 1.98 to 2.54 GeV is measured in a data sample of 469 fb1^{-1} collected with the BABAR detector. The results are used in conjunction with previous BABAR results for the e+eK+Ke^+e^- \to K^+ K^-, e+eπ+πe^+e^- \to \pi^+\pi^-, e+eπ+πηe^+e^- \to \pi^+\pi^-\eta, and e+eωππe^+e^- \to \omega\pi\pi cross sections to investigate the nature of the resonance structure recently observed by the BESIII experiment in the e+eK+Ke^+e^- \to K^+ K^- cross section.

Keywords

Cite

@article{arxiv.1912.04512,
  title  = {Resonances in $e^+e^-$ annihilation near 2.2 GeV},
  author = {The BABAR Collaboration},
  journal= {arXiv preprint arXiv:1912.04512},
  year   = {2020}
}

Comments

11 pages, 6 figures

R2 v1 2026-06-23T12:41:00.060Z