The process e+e−→K+K− has been studied using 1.7×106 events from a data sample corresponding to an integrated luminosity of 5.7 pb −1 collected with the CMD-3 detector in the center-of-mass energy range 1010–1060 MeV. The cross section is measured with about 2% systematic uncertainty and is used to calculate the contribution to the anomalous magnetic moment of the muon aμK+K−=(19.33±0.40)×10−10 , and to obtain the ϕ(1020) meson parameters. We consider the relationship between the e+e−→K+K− and e+e−→KS0KL0 cross sections and compare it to the theoretical prediction.
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"source": "Elsevier",
"title": "Study of the process e + e \u2212 \u2192 K + K \u2212 in the center-of-mass energy range 1010\u20131060 MeV with the CMD-3 detector"
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"value": "The process e+e\u2212\u2192K+K\u2212 has been studied using 1.7\u00d7106 events from a data sample corresponding to an integrated luminosity of 5.7 pb \u22121 collected with the CMD-3 detector in the center-of-mass energy range 1010\u20131060 MeV. The cross section is measured with about 2% systematic uncertainty and is used to calculate the contribution to the anomalous magnetic moment of the muon a\u03bcK+K\u2212=(19.33\u00b10.40)\u00d710\u221210 , and to obtain the \u03d5(1020) meson parameters. We consider the relationship between the e+e\u2212\u2192K+K\u2212 and e+e\u2212\u2192KS0KL0 cross sections and compare it to the theoretical prediction."
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