{ "id": "2403.14294", "version": "v1", "published": "2024-03-21T11:00:20.000Z", "updated": "2024-03-21T11:00:20.000Z", "title": "Electron-positron annihilation into $K\\bar{K}π$ and their contributions to $(g-2)_μ$", "authors": [ "Bing-Hai Qin", "Wen Qin", "Ling-Yun Dai" ], "comment": "13 pages, 2 figures", "categories": [ "hep-ph", "nucl-th" ], "abstract": "In this paper, a coherent study of the $e^+e^-$ annihilation into $K^+K^-\\pi^0$, $K^0_SK^0_L\\pi^0$ and $K^0_SK^\\pm\\pi^\\mp$ is carried out within the framework of resonance chiral theory. The amplitudes are fixed by fitting to the experimental cross-section and invariant mass spectrum. With these amplitudes, one can calculate the hadronic vacuum polarization form factors of these processes. The leading order contributions of $\\sigma(e^+e^- \\to K\\bar{K}\\pi)$ to the anomalous magnetic moment of the muon, $(g-2)_\\mu$, is obtained as $a_\\mu^{\\rm HVP,LO}(e^+e^- \\to K\\bar{K}\\pi)=(3.07\\pm0.07)\\times10^{-10}$ up to $E_{\\rm cm}=2.3$ GeV.", "revisions": [ { "version": "v1", "updated": "2024-03-21T11:00:20.000Z" } ], "analyses": { "keywords": [ "electron-positron annihilation", "hadronic vacuum polarization form factors", "resonance chiral theory", "invariant mass spectrum", "amplitudes" ], "note": { "typesetting": "TeX", "pages": 13, "language": "en", "license": "arXiv", "status": "editable" } } }