S. Wang

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20212026

C P

symmetry in the entangled

Ξ^{0} - Ξ ˉ^{0}

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hep-ex2026

First energy scan measurement of $e^{+} e^{-} \to K^{+} K^{-}$ around the $ψ (2 S)$ resonance

BESIII Collaboration, M. Ablikim, M. N. Achasov +684

We report the precise energy scan measurement of the cross section lineshape of $ψ (2 S) \to K^{+} K^{-}$ . The analysis is based on $e^{+} e^{-}$ collision data corresponding to an inte…

First energy scan measurement of e+e−→K+K− around the ψ(2S) resonance

First energy scan measurement of $e^{+} e^{-} \to K^{+} K^{-}$ around the $ψ (2 S)$ resonance