The process e+e−→K0LK0S has been studied with the CMD-2 detector using about 950 events detected in the center-of-mass energy range from 1.05 to 1.38 GeV. The cross section exceeds the expectation based on the contributions of the ρ(770), ω(782) and φ(1020) mesons only.
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Akhmetshin et al. (2002) studied this question.
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