Measurement of the e+e- -> K+K- cross section in the energy range s**(1/2) = 1.04 - 1.38 GeV with the SND detector in the experiment at the VEPP-2M e+e- collider

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Achasov, M. N.
Beloborodov, K. I.
Berdyugin, A. V.
Bogdanchikov, A. G.
Bukin, A. D.
Bukin, D. A.
Dimova, T. V.
Druzhinin, V. P.
Golubev, V. B.
Koop, I. A.
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Abstract
Description
The cross section of the process $e^+e^- \to K^+K^-$ was measured in the energy range $\sqrt{s}$ = 1.04--1.38 GeV in the SND experiment at the VEPP-2M $e^+e^-$ collider. The measured cross section is described by the model of vector meson dominance with contributions from the light vector mesons $\rho$, $\omega$, $\phi$ and their lowest excitations. The mean statistical accuracy of the measurement is 4.4 %, and the systematic uncertainty is 5.2 %.
Comment: 20 pages, 11 figures
Keywords
High Energy Physics - Experiment
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